252631002 has 24 divisors (see below), whose sum is σ = 547120224. Its totient is φ = 77732304.

The previous prime is 252630947. The next prime is 252631007. The reversal of 252631002 is 200136252.

It is a self number, because there is not a number n which added to its sum of digits gives 252631002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252631007) 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, 123558 + ... + 125585.

It is an arithmetic number, because the mean of its divisors is an integer number (22796676).

Almost surely, 2^252631002 is an apocalyptic number.

252631002 is an abundant number, since it is smaller than the sum of its proper divisors (294489222).

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

252631002 is a wasteful number, since it uses less digits than its factorization.

252631002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249174 (or 249161 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 252631002 is about 15894.3701353655. The cubic root of 252631002 is about 632.1627208124.

Adding to 252631002 its reverse (200136252), we get a palindrome (452767254).

The spelling of 252631002 in words is "two hundred fifty-two million, six hundred thirty-one thousand, two".