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53025144 = 23337211283
BaseRepresentation
bin1100101001000…
…1100101111000
310200202221211020
43022101211320
5102033301034
65132302440
71212464154
oct312214570
9120687736
1053025144
1127a27637
1215911a20
13aca7333
147084064
1549c6249
hex3291978

53025144 has 64 divisors (see below), whose sum is σ = 137274240. Its totient is φ = 17055360.

The previous prime is 53025127. The next prime is 53025151. The reversal of 53025144 is 44152035.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187227 + ... + 187509.

It is an arithmetic number, because the mean of its divisors is an integer number (2144910).

Almost surely, 253025144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53025144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68637120).

53025144 is an abundant number, since it is smaller than the sum of its proper divisors (84249096).

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

53025144 is a wasteful number, since it uses less digits than its factorization.

53025144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 53025144 is about 7281.8365815225. The cubic root of 53025144 is about 375.6879673196.

Adding to 53025144 its reverse (44152035), we get a palindrome (97177179).

The spelling of 53025144 in words is "fifty-three million, twenty-five thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 37 74 111 148 211 222 283 296 422 444 566 633 844 849 888 1132 1266 1688 1698 2264 2532 3396 5064 6792 7807 10471 15614 20942 23421 31228 31413 41884 46842 59713 62456 62826 83768 93684 119426 125652 179139 187368 238852 251304 358278 477704 716556 1433112 2209381 4418762 6628143 8837524 13256286 17675048 26512572 53025144