525421564 has 12 divisors (see below), whose sum is σ = 924625800. Its totient is φ = 261242768.

The previous prime is 525421543. The next prime is 525421607. The reversal of 525421564 is 465124525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366199 + ... + 367630.

It is an arithmetic number, because the mean of its divisors is an integer number (77052150).

Almost surely, 2^525421564 is an apocalyptic number.

It is an amenable number.

525421564 is a deficient number, since it is larger than the sum of its proper divisors (399204236).

525421564 is a wasteful number, since it uses less digits than its factorization.

525421564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734012 (or 734010 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 525421564 is about 22922.0759094808. The cubic root of 525421564 is about 806.9301901432.

The spelling of 525421564 in words is "five hundred twenty-five million, four hundred twenty-one thousand, five hundred sixty-four".