255622556 has 12 divisors (see below), whose sum is σ = 511245168. Its totient is φ = 109552512.

The previous prime is 255622553. The next prime is 255622571. The reversal of 255622556 is 655226552.

255622556 is an admirable number.

It is a super-2 number, since 2×255622556² = 130685782271946272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255622553) 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, 4564661 + ... + 4564716.

It is an arithmetic number, because the mean of its divisors is an integer number (42603764).

Almost surely, 2^255622556 is an apocalyptic number.

It is an amenable number.

255622556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

255622556 is a wasteful number, since it uses less digits than its factorization.

255622556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9129388 (or 9129386 counting only the distinct ones).

The product of its digits is 180000, while the sum is 38.

The square root of 255622556 is about 15988.2005241365. The cubic root of 255622556 is about 634.6482073983.

The spelling of 255622556 in words is "two hundred fifty-five million, six hundred twenty-two thousand, five hundred fifty-six".