256968516 has 48 divisors (see below), whose sum is σ = 701195264. Its totient is φ = 71711136.

The previous prime is 256968511. The next prime is 256968527. The reversal of 256968516 is 615869652.

It is not an unprimeable number, because it can be changed into a prime (256968511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31960 + ... + 39183.

Almost surely, 2^256968516 is an apocalyptic number.

It is an amenable number.

256968516 is an abundant number, since it is smaller than the sum of its proper divisors (444226748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256968516 is a wasteful number, since it uses less digits than its factorization.

256968516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71200 (or 71198 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 256968516 is about 16030.2375528250. The cubic root of 256968516 is about 635.7601544097.

The spelling of 256968516 in words is "two hundred fifty-six million, nine hundred sixty-eight thousand, five hundred sixteen".