64572508 has 48 divisors (see below), whose sum is σ = 151732224. Its totient is φ = 23221440.

The previous prime is 64572493. The next prime is 64572551. The reversal of 64572508 is 80527546.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4060 + ... + 12067.

It is an arithmetic number, because the mean of its divisors is an integer number (3161088).

Almost surely, 2^64572508 is an apocalyptic number.

It is an amenable number.

64572508 is an abundant number, since it is smaller than the sum of its proper divisors (87159716).

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

64572508 is a wasteful number, since it uses less digits than its factorization.

64572508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16162 (or 16160 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 64572508 is about 8035.7020850701. The cubic root of 64572508 is about 401.1891860876.

It can be divided in two parts, 645 and 72508, that added together give a triangular number (73153 = T₃₈₂).

The spelling of 64572508 in words is "sixty-four million, five hundred seventy-two thousand, five hundred eight".