251054656 has 14 divisors (see below), whose sum is σ = 498186710. Its totient is φ = 125527296.

The previous prime is 251054627. The next prime is 251054669. The reversal of 251054656 is 656450152.

251054656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 247118400 + 3936256 = 15720^2 + 1984^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1961301 + ... + 1961428.

It is an arithmetic number, because the mean of its divisors is an integer number (35584765).

Almost surely, 2^251054656 is an apocalyptic number.

It is an amenable number.

251054656 is a deficient number, since it is larger than the sum of its proper divisors (247132054).

251054656 is an equidigital number, since it uses as much as digits as its factorization.

251054656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922741 (or 3922731 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 251054656 is about 15844.7043519278. The cubic root of 251054656 is about 630.8451376915.

The spelling of 251054656 in words is "two hundred fifty-one million, fifty-four thousand, six hundred fifty-six".