525388764 has 12 divisors (see below), whose sum is σ = 1225907144. Its totient is φ = 175129584.

The previous prime is 525388693. The next prime is 525388771. The reversal of 525388764 is 467883525.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21891187 + ... + 21891210.

Almost surely, 2^525388764 is an apocalyptic number.

It is an amenable number.

525388764 is an abundant number, since it is smaller than the sum of its proper divisors (700518380).

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

525388764 is a wasteful number, since it uses less digits than its factorization.

525388764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43782404 (or 43782402 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The square root of 525388764 is about 22921.3604308296. The cubic root of 525388764 is about 806.9133986354.

The spelling of 525388764 in words is "five hundred twenty-five million, three hundred eighty-eight thousand, seven hundred sixty-four".