256590351 has 12 divisors (see below), whose sum is σ = 376913160. Its totient is φ = 168160560.

The previous prime is 256590337. The next prime is 256590353. The reversal of 256590351 is 153095652.

256590351 is a `hidden beast` number, since 2 + 565 + 90 + 3 + 5 + 1 = 666.

256590351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256590351 - 2⁵ = 256590319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256590353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241080 + ... + 242141.

It is an arithmetic number, because the mean of its divisors is an integer number (31409430).

Almost surely, 2^256590351 is an apocalyptic number.

256590351 is a deficient number, since it is larger than the sum of its proper divisors (120322809).

256590351 is a wasteful number, since it uses less digits than its factorization.

256590351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483286 (or 483283 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 256590351 is about 16018.4378451833. The cubic root of 256590351 is about 635.4481313944.

The spelling of 256590351 in words is "two hundred fifty-six million, five hundred ninety thousand, three hundred fifty-one".