631132255 has 32 divisors (see below), whose sum is σ = 845591040. Its totient is φ = 449072640.

The previous prime is 631132219. The next prime is 631132283. The reversal of 631132255 is 552231136.

It is not a de Polignac number, because 631132255 - 2¹⁵ = 631099487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 589861 + ... + 590929.

It is an arithmetic number, because the mean of its divisors is an integer number (26424720).

Almost surely, 2^631132255 is an apocalyptic number.

631132255 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

631132255 is a deficient number, since it is larger than the sum of its proper divisors (214458785).

631132255 is a wasteful number, since it uses less digits than its factorization.

631132255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its digits is 5400, while the sum is 28.

The square root of 631132255 is about 25122.3457304448. The cubic root of 631132255 is about 857.7751465128.

The spelling of 631132255 in words is "six hundred thirty-one million, one hundred thirty-two thousand, two hundred fifty-five".