256965092 has 6 divisors (see below), whose sum is σ = 449688918. Its totient is φ = 128482544.

The previous prime is 256965091. The next prime is 256965113. The reversal of 256965092 is 290569652.

It can be written as a sum of positive squares in only one way, i.e., 206611876 + 50353216 = 14374^2 + 7096^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (256965091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32120633 + ... + 32120640.

It is an arithmetic number, because the mean of its divisors is an integer number (74948153).

Almost surely, 2^256965092 is an apocalyptic number.

It is an amenable number.

256965092 is a deficient number, since it is larger than the sum of its proper divisors (192723826).

256965092 is a wasteful number, since it uses less digits than its factorization.

256965092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64241277 (or 64241275 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 256965092 is about 16030.1307543014. The cubic root of 256965092 is about 635.7573306495.

The spelling of 256965092 in words is "two hundred fifty-six million, nine hundred sixty-five thousand, ninety-two".