256152968 has 16 divisors (see below), whose sum is σ = 485043660. Its totient is φ = 126808000.

The previous prime is 256152959. The next prime is 256152979. The reversal of 256152968 is 869251652.

It can be written as a sum of positive squares in 2 ways, for example, as 250209124 + 5943844 = 15818^2 + 2438^2 .

It is a super-2 number, since 2×256152968² = 131228686030418048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157703 + ... + 159318.

Almost surely, 2^256152968 is an apocalyptic number.

It is an amenable number.

256152968 is a deficient number, since it is larger than the sum of its proper divisors (228890692).

256152968 is a wasteful number, since it uses less digits than its factorization.

256152968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317128 (or 317124 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 256152968 is about 16004.7795361261. The cubic root of 256152968 is about 635.0868651704.

The spelling of 256152968 in words is "two hundred fifty-six million, one hundred fifty-two thousand, nine hundred sixty-eight".