64523256 has 32 divisors (see below), whose sum is σ = 184352640. Its totient is φ = 18435168.

The previous prime is 64523237. The next prime is 64523267. The reversal of 64523256 is 65232546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191866 + ... + 192201.

It is an arithmetic number, because the mean of its divisors is an integer number (5761020).

Almost surely, 2^64523256 is an apocalyptic number.

It is an amenable number.

64523256 is an abundant number, since it is smaller than the sum of its proper divisors (119829384).

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

64523256 is a wasteful number, since it uses less digits than its factorization.

64523256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384083 (or 384079 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 64523256 is about 8032.6369269375. The cubic root of 64523256 is about 401.0871592019.

The spelling of 64523256 in words is "sixty-four million, five hundred twenty-three thousand, two hundred fifty-six".