52316631 has 16 divisors (see below), whose sum is σ = 79602400. Its totient is φ = 33934464.

The previous prime is 52316587. The next prime is 52316647. The reversal of 52316631 is 13661325.

52316631 is a `hidden beast` number, since 5 + 23 + 1 + 6 + 631 = 666.

It is not a de Polignac number, because 52316631 - 2⁹ = 52316119 is a prime.

It is a super-2 number, since 2×52316631² = 5474059758380322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52316595 and 52316604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52316431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25186 + ... + 27183.

It is an arithmetic number, because the mean of its divisors is an integer number (4975150).

Almost surely, 2^52316631 is an apocalyptic number.

52316631 is a deficient number, since it is larger than the sum of its proper divisors (27285769).

52316631 is a wasteful number, since it uses less digits than its factorization.

52316631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52415 (or 52409 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 52316631 is about 7233.0236416038. The cubic root of 52316631 is about 374.0071657334.

Adding to 52316631 its reverse (13661325), we get a palindrome (65977956).

The spelling of 52316631 in words is "fifty-two million, three hundred sixteen thousand, six hundred thirty-one".