631541052 has 72 divisors (see below), whose sum is σ = 1675087232. Its totient is φ = 200361600.

The previous prime is 631541047. The next prime is 631541069. The reversal of 631541052 is 250145136.

It is a super-2 number, since 2×631541052² = 797688200722533408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63438 + ... + 72714.

Almost surely, 2^631541052 is an apocalyptic number.

631541052 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631541052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837543616).

631541052 is an abundant number, since it is smaller than the sum of its proper divisors (1043546180).

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

631541052 is a wasteful number, since it uses less digits than its factorization.

631541052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9379 (or 9374 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 631541052 is about 25130.4805365914. The cubic root of 631541052 is about 857.9603059212.

Adding to 631541052 its reverse (250145136), we get a palindrome (881686188).

The spelling of 631541052 in words is "six hundred thirty-one million, five hundred forty-one thousand, fifty-two".