525939568 has 90 divisors (see below), whose sum is σ = 1286606888. Its totient is φ = 203871360.

The previous prime is 525939559. The next prime is 525939581. The reversal of 525939568 is 865939525.

It is a super-2 number, since 2×525939568² = 553224858376053248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2669646 + ... + 2669842.

Almost surely, 2^525939568 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 525939568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643303444).

525939568 is an abundant number, since it is smaller than the sum of its proper divisors (760667320).

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

525939568 is a wasteful number, since it uses less digits than its factorization.

525939568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 217 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 52.

The square root of 525939568 is about 22933.3723643079. The cubic root of 525939568 is about 807.1952825351.

The spelling of 525939568 in words is "five hundred twenty-five million, nine hundred thirty-nine thousand, five hundred sixty-eight".