64072256 has 28 divisors (see below), whose sum is σ = 133837680. Its totient is φ = 30349440.

The previous prime is 64072219. The next prime is 64072277. The reversal of 64072256 is 65227046.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25130 + ... + 27561.

Almost surely, 2^64072256 is an apocalyptic number.

It is an amenable number.

64072256 is an abundant number, since it is smaller than the sum of its proper divisors (69765424).

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

64072256 is a wasteful number, since it uses less digits than its factorization.

64072256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52722 (or 52712 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 64072256 is about 8004.5147260780. The cubic root of 64072256 is about 400.1504767181.

The spelling of 64072256 in words is "sixty-four million, seventy-two thousand, two hundred fifty-six".