78576256 has 32 divisors (see below), whose sum is σ = 170772480. Its totient is φ = 35715840.

The previous prime is 78576241. The next prime is 78576307. The reversal of 78576256 is 65267587.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26496 + ... + 29311.

It is an arithmetic number, because the mean of its divisors is an integer number (5336640).

Almost surely, 2^78576256 is an apocalyptic number.

It is an amenable number.

78576256 is an abundant number, since it is smaller than the sum of its proper divisors (92196224).

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

78576256 is a wasteful number, since it uses less digits than its factorization.

78576256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55832 (or 55820 counting only the distinct ones).

The product of its digits is 705600, while the sum is 46.

The square root of 78576256 is about 8864.3249037927. The cubic root of 78576256 is about 428.3154863779.

The spelling of 78576256 in words is "seventy-eight million, five hundred seventy-six thousand, two hundred fifty-six".