256017316 has 12 divisors (see below), whose sum is σ = 448893900. Its totient is φ = 127761920.

The previous prime is 256017283. The next prime is 256017317. The reversal of 256017316 is 613710652.

It can be written as a sum of positive squares in 2 ways, for example, as 93199716 + 162817600 = 9654^2 + 12760^2 .

256017316 is a modest number, since divided by 17316 gives 256 as remainder.

It is not an unprimeable number, because it can be changed into a prime (256017317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59341 + ... + 63508.

It is an arithmetic number, because the mean of its divisors is an integer number (37407825).

Almost surely, 2^256017316 is an apocalyptic number.

It is an amenable number.

256017316 is a deficient number, since it is larger than the sum of its proper divisors (192876584).

256017316 is a wasteful number, since it uses less digits than its factorization.

256017316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123374 (or 123372 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 256017316 is about 16000.5411158498. The cubic root of 256017316 is about 634.9747368377.

Adding to 256017316 its reverse (613710652), we get a palindrome (869727968).

The spelling of 256017316 in words is "two hundred fifty-six million, seventeen thousand, three hundred sixteen".