252011655 has 168 divisors, whose sum is σ = 565194672. Its totient is φ = 107122176.

The previous prime is 252011647. The next prime is 252011677. The reversal of 252011655 is 556110252.

252011655 is a `hidden beast` number, since 2 + 5 + 2 + 0 + 1 + 1 + 655 = 666.

It is not a de Polignac number, because 252011655 - 2³ = 252011647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 167 ways as a sum of consecutive naturals, for example, 3036244 + ... + 3036326.

It is an arithmetic number, because the mean of its divisors is an integer number (3364254).

Almost surely, 2^252011655 is an apocalyptic number.

252011655 is an abundant number, since it is smaller than the sum of its proper divisors (313183017).

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

252011655 is an equidigital number, since it uses as much as digits as its factorization.

252011655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 252011655 is about 15874.8749601375. The cubic root of 252011655 is about 631.6456973366.

The spelling of 252011655 in words is "two hundred fifty-two million, eleven thousand, six hundred fifty-five".