525542664 has 16 divisors (see below), whose sum is σ = 1313856720. Its totient is φ = 175180880.

The previous prime is 525542657. The next prime is 525542701. The reversal of 525542664 is 466245525.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10948782 + ... + 10948829.

It is an arithmetic number, because the mean of its divisors is an integer number (82116045).

Almost surely, 2^525542664 is an apocalyptic number.

It is an amenable number.

525542664 is an abundant number, since it is smaller than the sum of its proper divisors (788314056).

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

525542664 is a wasteful number, since it uses less digits than its factorization.

525542664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21897620 (or 21897616 counting only the distinct ones).

The product of its digits is 288000, while the sum is 39.

The square root of 525542664 is about 22924.7173155963. The cubic root of 525542664 is about 806.9921795667.

The spelling of 525542664 in words is "five hundred twenty-five million, five hundred forty-two thousand, six hundred sixty-four".