252635895 has 128 divisors (see below), whose sum is σ = 507617280. Its totient is φ = 118609920.

The previous prime is 252635869. The next prime is 252635899. The reversal of 252635895 is 598536252.

252635895 is a `hidden beast` number, since 2 + 5 + 2 + 63 + 589 + 5 = 666.

It is not a de Polignac number, because 252635895 - 2⁵ = 252635863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 252635895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252635899) 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 127 ways as a sum of consecutive naturals, for example, 3770652 + ... + 3770718.

It is an arithmetic number, because the mean of its divisors is an integer number (3965760).

Almost surely, 2^252635895 is an apocalyptic number.

252635895 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

252635895 is a wasteful number, since it uses less digits than its factorization.

252635895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 176 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 252635895 is about 15894.5240570456. The cubic root of 252635895 is about 632.1668020642.

The spelling of 252635895 in words is "two hundred fifty-two million, six hundred thirty-five thousand, eight hundred ninety-five".