256501675 has 12 divisors (see below), whose sum is σ = 320387976. Its totient is φ = 203700800.

The previous prime is 256501667. The next prime is 256501697. The reversal of 256501675 is 576105652.

It is not a de Polignac number, because 256501675 - 2³ = 256501667 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34021 + ... + 40870.

It is an arithmetic number, because the mean of its divisors is an integer number (26698998).

Almost surely, 2^256501675 is an apocalyptic number.

256501675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256501675 is a deficient number, since it is larger than the sum of its proper divisors (63886301).

256501675 is a wasteful number, since it uses less digits than its factorization.

256501675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75038 (or 75033 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 256501675 is about 16015.6696706694. The cubic root of 256501675 is about 635.3749206770.

The spelling of 256501675 in words is "two hundred fifty-six million, five hundred one thousand, six hundred seventy-five".