252535815 has 24 divisors (see below), whose sum is σ = 500262048. Its totient is φ = 115444800.

The previous prime is 252535813. The next prime is 252535819. The reversal of 252535815 is 518535252.

252535815 is a `hidden beast` number, since 25 + 2 + 53 + 581 + 5 = 666.

It is not a de Polignac number, because 252535815 - 2¹ = 252535813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252535815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252535813) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 400536 + ... + 401165.

It is an arithmetic number, because the mean of its divisors is an integer number (20844252).

Almost surely, 2^252535815 is an apocalyptic number.

252535815 is a deficient number, since it is larger than the sum of its proper divisors (247726233).

252535815 is a wasteful number, since it uses less digits than its factorization.

252535815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801719 (or 801716 counting only the distinct ones).

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

The square root of 252535815 is about 15891.3754911273. The cubic root of 252535815 is about 632.0833148389.

The spelling of 252535815 in words is "two hundred fifty-two million, five hundred thirty-five thousand, eight hundred fifteen".