525660257004 has 96 divisors (see below), whose sum is σ = 1333855272960. Its totient is φ = 160509211200.

The previous prime is 525660256999. The next prime is 525660257027. The reversal of 525660257004 is 400752066525.

It is a super-2 number, since 2×525660257004² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8613759 + ... + 8674569.

It is an arithmetic number, because the mean of its divisors is an integer number (13894325760).

Almost surely, 2^525660257004 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 525660257004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666927636480).

525660257004 is an abundant number, since it is smaller than the sum of its proper divisors (808195015956).

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

525660257004 is a wasteful number, since it uses less digits than its factorization.

525660257004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62091 (or 62089 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 525660257004 in words is "five hundred twenty-five billion, six hundred sixty million, two hundred fifty-seven thousand, four".