255712590 has 48 divisors (see below), whose sum is σ = 759833568. Its totient is φ = 58448448.

The previous prime is 255712579. The next prime is 255712591. The reversal of 255712590 is 95217552.

255712590 is a `hidden beast` number, since 2 + 5 + 57 + 12 + 590 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255712591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202317 + ... + 203576.

It is an arithmetic number, because the mean of its divisors is an integer number (15829866).

Almost surely, 2^255712590 is an apocalyptic number.

255712590 is an abundant number, since it is smaller than the sum of its proper divisors (504120978).

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

255712590 is a wasteful number, since it uses less digits than its factorization.

255712590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405913 (or 405910 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 255712590 is about 15991.0159151944. The cubic root of 255712590 is about 634.7227094433.

The spelling of 255712590 in words is "two hundred fifty-five million, seven hundred twelve thousand, five hundred ninety".