52631997 has 8 divisors (see below), whose sum is σ = 76555680. Its totient is φ = 31898160.

The previous prime is 52631989. The next prime is 52632007. The reversal of 52631997 is 79913625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52631997 - 2³ = 52631989 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52631927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797422 + ... + 797487.

It is an arithmetic number, because the mean of its divisors is an integer number (9569460).

Almost surely, 2^52631997 is an apocalyptic number.

It is an amenable number.

52631997 is a deficient number, since it is larger than the sum of its proper divisors (23923683).

52631997 is a wasteful number, since it uses less digits than its factorization.

52631997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594923.

The product of its digits is 102060, while the sum is 42.

The square root of 52631997 is about 7254.7913133322. The cubic root of 52631997 is about 374.7571690111.

It can be divided in two parts, 52631 and 997, that added together give a triangular number (53628 = T₃₂₇).

The spelling of 52631997 in words is "fifty-two million, six hundred thirty-one thousand, nine hundred ninety-seven".