256155036 has 24 divisors (see below), whose sum is σ = 629153280. Its totient is φ = 80890992.

The previous prime is 256155023. The next prime is 256155059. The reversal of 256155036 is 630551652.

It is a super-2 number, since 2×256155036² = 131230804936322592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256154988 and 256155006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561516 + ... + 561971.

It is an arithmetic number, because the mean of its divisors is an integer number (26214720).

Almost surely, 2^256155036 is an apocalyptic number.

It is an amenable number.

256155036 is an abundant number, since it is smaller than the sum of its proper divisors (372998244).

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

256155036 is a wasteful number, since it uses less digits than its factorization.

256155036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123513 (or 1123511 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 256155036 is about 16004.8441416966. The cubic root of 256155036 is about 635.0885742483.

The spelling of 256155036 in words is "two hundred fifty-six million, one hundred fifty-five thousand, thirty-six".