65808256 has 16 divisors (see below), whose sum is σ = 131102640. Its totient is φ = 32904064.

The previous prime is 65808247. The next prime is 65808263. The reversal of 65808256 is 65280856.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256936 + ... + 257191.

It is an arithmetic number, because the mean of its divisors is an integer number (8193915).

Almost surely, 2^65808256 is an apocalyptic number.

It is an amenable number.

65808256 is a deficient number, since it is larger than the sum of its proper divisors (65294384).

65808256 is an equidigital number, since it uses as much as digits as its factorization.

65808256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514141 (or 514129 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 65808256 is about 8112.2287936177. The cubic root of 65808256 is about 403.7322671428.

The spelling of 65808256 in words is "sixty-five million, eight hundred eight thousand, two hundred fifty-six".