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553025740 = 225313892293
BaseRepresentation
bin100000111101101…
…000000011001100
31102112121121200211
4200331220003030
52113033310430
6130513132204
716463432641
oct4075500314
91375547624
10553025740
11264194473
1213525a064
138a75c787
1453639dc8
153383e72a
hex20f680cc

553025740 has 48 divisors (see below), whose sum is σ = 1202423040. Its totient is φ = 213431040.

The previous prime is 553025719. The next prime is 553025741. The reversal of 553025740 is 47520355.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (553025741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240034 + ... + 242326.

It is an arithmetic number, because the mean of its divisors is an integer number (25050480).

Almost surely, 2553025740 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 553025740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601211520).

553025740 is an abundant number, since it is smaller than the sum of its proper divisors (649397300).

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

553025740 is a wasteful number, since it uses less digits than its factorization.

553025740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 553025740 is about 23516.4993143112. The cubic root of 553025740 is about 820.8209802625.

The spelling of 553025740 in words is "five hundred fifty-three million, twenty-five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 389 620 778 1556 1945 2293 3890 4586 7780 9172 11465 12059 22930 24118 45860 48236 60295 71083 120590 142166 241180 284332 355415 710830 891977 1421660 1783954 3567908 4459885 8919770 17839540 27651287 55302574 110605148 138256435 276512870 553025740