525657568 has 12 divisors (see below), whose sum is σ = 1034888400. Its totient is φ = 262828768.

The previous prime is 525657523. The next prime is 525657569. The reversal of 525657568 is 865756525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525657569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213368 + ... + 8213431.

It is an arithmetic number, because the mean of its divisors is an integer number (86240700).

Almost surely, 2^525657568 is an apocalyptic number.

It is an amenable number.

525657568 is a deficient number, since it is larger than the sum of its proper divisors (509230832).

525657568 is a wasteful number, since it uses less digits than its factorization.

525657568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16426809 (or 16426801 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 49.

The square root of 525657568 is about 22927.2232945902. The cubic root of 525657568 is about 807.0509885393.

The spelling of 525657568 in words is "five hundred twenty-five million, six hundred fifty-seven thousand, five hundred sixty-eight".