64757525 has 24 divisors (see below), whose sum is σ = 92077440. Its totient is φ = 44256960.

The previous prime is 64757521. The next prime is 64757549. The reversal of 64757525 is 52575746.

It is not a de Polignac number, because 64757525 - 2² = 64757521 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64757521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88712 + ... + 89438.

It is an arithmetic number, because the mean of its divisors is an integer number (3836560).

Almost surely, 2^64757525 is an apocalyptic number.

It is an amenable number.

64757525 is a deficient number, since it is larger than the sum of its proper divisors (27319915).

64757525 is a wasteful number, since it uses less digits than its factorization.

64757525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1248 counting only the distinct ones).

The product of its digits is 294000, while the sum is 41.

The square root of 64757525 is about 8047.2060368801. The cubic root of 64757525 is about 401.5719911003.

The spelling of 64757525 in words is "sixty-four million, seven hundred fifty-seven thousand, five hundred twenty-five".