631506752 has 56 divisors (see below), whose sum is σ = 1335673224. Its totient is φ = 295206912.

The previous prime is 631506749. The next prime is 631506767. The reversal of 631506752 is 257605136.

It can be written as a sum of positive squares in 4 ways, for example, as 23193856 + 608312896 = 4816^2 + 24664^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168968 + ... + 172664.

Almost surely, 2^631506752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631506752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667836612).

631506752 is an abundant number, since it is smaller than the sum of its proper divisors (704166472).

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

631506752 is a wasteful number, since it uses less digits than its factorization.

631506752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 631506752 is about 25129.7980891212. The cubic root of 631506752 is about 857.9447732432.

The spelling of 631506752 in words is "six hundred thirty-one million, five hundred six thousand, seven hundred fifty-two".