255231558 has 12 divisors (see below), whose sum is σ = 553001748. Its totient is φ = 85077180.

The previous prime is 255231553. The next prime is 255231569. The reversal of 255231558 is 855132552.

255231558 is a `hidden beast` number, since 25 + 52 + 31 + 558 = 666.

255231558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255231553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7089748 + ... + 7089783.

It is an arithmetic number, because the mean of its divisors is an integer number (46083479).

Almost surely, 2^255231558 is an apocalyptic number.

255231558 is an abundant number, since it is smaller than the sum of its proper divisors (297770190).

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

255231558 is a wasteful number, since it uses less digits than its factorization.

255231558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14179539 (or 14179536 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 255231558 is about 15975.9681396778. The cubic root of 255231558 is about 634.3244581798.

The spelling of 255231558 in words is "two hundred fifty-five million, two hundred thirty-one thousand, five hundred fifty-eight".