255656241 has 6 divisors (see below), whose sum is σ = 369281250. Its totient is φ = 170437488.

The previous prime is 255656239. The next prime is 255656249. The reversal of 255656241 is 142656552.

255656241 is a `hidden beast` number, since 2 + 5 + 56 + 562 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 225450225 + 30206016 = 15015^2 + 5496^2 .

It is not a de Polignac number, because 255656241 - 2¹ = 255656239 is a prime.

It is a super-2 number, since 2×255656241² = 130720227124500162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255656196 and 255656205.

It is not an unprimeable number, because it can be changed into a prime (255656249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14203116 + ... + 14203133.

It is an arithmetic number, because the mean of its divisors is an integer number (61546875).

Almost surely, 2^255656241 is an apocalyptic number.

It is an amenable number.

255656241 is a deficient number, since it is larger than the sum of its proper divisors (113625009).

255656241 is a wasteful number, since it uses less digits than its factorization.

255656241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28406255 (or 28406252 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 255656241 is about 15989.2539225569. The cubic root of 255656241 is about 634.6760833758.

The spelling of 255656241 in words is "two hundred fifty-five million, six hundred fifty-six thousand, two hundred forty-one".