54686631 has 8 divisors (see below), whose sum is σ = 73440640. Its totient is φ = 36195192.

The previous prime is 54686627. The next prime is 54686641. The reversal of 54686631 is 13668645.

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

It is not a de Polignac number, because 54686631 - 2² = 54686627 is a prime.

It is a super-2 number, since 2×54686631² = 5981255220260322, 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 54686631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54686641) 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, 65155 + ... + 65988.

It is an arithmetic number, because the mean of its divisors is an integer number (9180080).

Almost surely, 2^54686631 is an apocalyptic number.

54686631 is a deficient number, since it is larger than the sum of its proper divisors (18754009).

54686631 is a wasteful number, since it uses less digits than its factorization.

54686631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131285.

The product of its digits is 103680, while the sum is 39.

The square root of 54686631 is about 7395.0409735173. The cubic root of 54686631 is about 379.5716109627.

The spelling of 54686631 in words is "fifty-four million, six hundred eighty-six thousand, six hundred thirty-one".