52506631 has 4 divisors (see below), whose sum is σ = 54789552. Its totient is φ = 50223712.

The previous prime is 52506613. The next prime is 52506647. The reversal of 52506631 is 13660525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52506631 - 2⁵ = 52506599 is a prime.

It is a super-2 number, since 2×52506631² = 5513892597940322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52506631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52506031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141426 + ... + 1141471.

It is an arithmetic number, because the mean of its divisors is an integer number (13697388).

Almost surely, 2^52506631 is an apocalyptic number.

52506631 is a deficient number, since it is larger than the sum of its proper divisors (2282921).

52506631 is a wasteful number, since it uses less digits than its factorization.

52506631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282920.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 52506631 is about 7246.1459411193. The cubic root of 52506631 is about 374.4593833680.

It can be divided in two parts, 5250 and 6631, that added together give a square (11881 = 109²).

The spelling of 52506631 in words is "fifty-two million, five hundred six thousand, six hundred thirty-one".