252765558 has 24 divisors (see below), whose sum is σ = 556943400. Its totient is φ = 82826784.

The previous prime is 252765509. The next prime is 252765559. The reversal of 252765558 is 855567252.

252765558 is a `hidden beast` number, since 25 + 2 + 76 + 5 + 558 = 666.

It is a super-3 number, since 3×252765558³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252765559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117943 + ... + 120066.

It is an arithmetic number, because the mean of its divisors is an integer number (23205975).

Almost surely, 2^252765558 is an apocalyptic number.

252765558 is an abundant number, since it is smaller than the sum of its proper divisors (304177842).

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

252765558 is a wasteful number, since it uses less digits than its factorization.

252765558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238076 (or 238073 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The square root of 252765558 is about 15898.6023914054. The cubic root of 252765558 is about 632.2749347913.

The spelling of 252765558 in words is "two hundred fifty-two million, seven hundred sixty-five thousand, five hundred fifty-eight".