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53030225500 = 22537219113921
BaseRepresentation
bin110001011000110110…
…010000011001011100
312001212202201120112221
4301120312100121130
51332101214204000
640210045435124
73555065323300
oct613066203134
9161782646487
1053030225500
11205431a834a
12a33b86baa4
1350017a7a75
1427d0d63d00
1515a590961a
hexc58d9065c

53030225500 has 144 divisors (see below), whose sum is σ = 141819219360. Its totient is φ = 17224704000.

The previous prime is 53030225491. The next prime is 53030225531. The reversal of 53030225500 is 552203035.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 408540 + ... + 522460.

It is an arithmetic number, because the mean of its divisors is an integer number (984855690).

Almost surely, 253030225500 is an apocalyptic number.

53030225500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53030225500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70909609680).

53030225500 is an abundant number, since it is smaller than the sum of its proper divisors (88788993860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53030225500 is a wasteful number, since it uses less digits than its factorization.

53030225500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113973 (or 113954 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

Adding to 53030225500 its reverse (552203035), we get a palindrome (53582428535).

The spelling of 53030225500 in words is "fifty-three billion, thirty million, two hundred twenty-five thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 19 20 25 28 35 38 49 50 70 76 95 98 100 125 133 140 175 190 196 245 250 266 350 380 475 490 500 532 665 700 875 931 950 980 1225 1330 1750 1862 1900 2375 2450 2660 3325 3500 3724 4655 4750 4900 6125 6650 9310 9500 12250 13300 16625 18620 23275 24500 33250 46550 66500 93100 113921 116375 227842 232750 455684 465500 569605 797447 1139210 1594894 2164499 2278420 2848025 3189788 3987235 4328998 5582129 5696050 7974470 8657996 10822495 11164258 11392100 14240125 15151493 15948940 19936175 21644990 22328516 27910645 28480250 30302986 39872350 43289980 54112475 55821290 56960500 60605972 75757465 79744700 99680875 106060451 108224950 111642580 139553225 151514930 199361750 212120902 216449900 270562375 279106450 303029860 378787325 398723500 424241804 530302255 541124750 558212900 697766125 757574650 1060604510 1082249500 1395532250 1515149300 1893936625 2121209020 2651511275 2791064500 3787873250 5303022550 7575746500 10606045100 13257556375 26515112750 53030225500