252521118 has 16 divisors (see below), whose sum is σ = 561158160. Its totient is φ = 84173688.

The previous prime is 252521107. The next prime is 252521123. The reversal of 252521118 is 811125252.

It is a happy number.

252521118 is a `hidden beast` number, since 2 + 525 + 21 + 118 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 252521091 and 252521100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2338105 + ... + 2338212.

It is an arithmetic number, because the mean of its divisors is an integer number (35072385).

Almost surely, 2^252521118 is an apocalyptic number.

252521118 is an abundant number, since it is smaller than the sum of its proper divisors (308637042).

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

252521118 is a wasteful number, since it uses less digits than its factorization.

252521118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676328 (or 4676322 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 252521118 is about 15890.9130637607. The cubic root of 252521118 is about 632.0710526723.

The spelling of 252521118 in words is "two hundred fifty-two million, five hundred twenty-one thousand, one hundred eighteen".