631210052 has 36 divisors (see below), whose sum is σ = 1216619628. Its totient is φ = 286334400.

The previous prime is 631210033. The next prime is 631210061. The reversal of 631210052 is 250012136.

It can be written as a sum of positive squares in 2 ways, for example, as 319122496 + 312087556 = 17864^2 + 17666^2 .

It is a super-2 number, since 2×631210052² = 796852259491685408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318938 + ... + 320910.

Almost surely, 2^631210052 is an apocalyptic number.

It is an amenable number.

631210052 is a deficient number, since it is larger than the sum of its proper divisors (585409576).

631210052 is a wasteful number, since it uses less digits than its factorization.

631210052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660 (or 2647 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 631210052 is about 25123.8940453107. The cubic root of 631210052 is about 857.8103898345.

Adding to 631210052 its reverse (250012136), we get a palindrome (881222188).

The spelling of 631210052 in words is "six hundred thirty-one million, two hundred ten thousand, fifty-two".