256265156 has 24 divisors (see below), whose sum is σ = 518710080. Its totient is φ = 108503712.

The previous prime is 256265077. The next prime is 256265159. The reversal of 256265156 is 651562652.

It is a happy number.

256265156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (256265159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52811 + ... + 57458.

It is an arithmetic number, because the mean of its divisors is an integer number (21612920).

Almost surely, 2^256265156 is an apocalyptic number.

It is an amenable number.

256265156 is an abundant number, since it is smaller than the sum of its proper divisors (262444924).

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

256265156 is a wasteful number, since it uses less digits than its factorization.

256265156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110363 (or 110361 counting only the distinct ones).

The product of its digits is 108000, while the sum is 38.

The square root of 256265156 is about 16008.2839804896. The cubic root of 256265156 is about 635.1795685351.

The spelling of 256265156 in words is "two hundred fifty-six million, two hundred sixty-five thousand, one hundred fifty-six".