5631813952 has 14 divisors (see below), whose sum is σ = 11175630938. Its totient is φ = 2815906944.

The previous prime is 5631813937. The next prime is 5631813983. The reversal of 5631813952 is 2593181365.

It can be written as a sum of positive squares in only one way, i.e., 5472448576 + 159365376 = 73976^2 + 12624^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5631813899 and 5631813908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43998483 + ... + 43998610.

Almost surely, 2^5631813952 is an apocalyptic number.

It is an amenable number.

5631813952 is a deficient number, since it is larger than the sum of its proper divisors (5543816986).

5631813952 is an equidigital number, since it uses as much as digits as its factorization.

5631813952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87997105 (or 87997095 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 5631813952 is about 75045.4125979730. The cubic root of 5631813952 is about 1779.1644809969.

The spelling of 5631813952 in words is "five billion, six hundred thirty-one million, eight hundred thirteen thousand, nine hundred fifty-two".