54878631 has 8 divisors (see below), whose sum is σ = 77022720. Its totient is φ = 34660152.

The previous prime is 54878627. The next prime is 54878639. The reversal of 54878631 is 13687845.

54878631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 54878631 - 2² = 54878627 is a prime.

It is a super-2 number, since 2×54878631² = 6023328280868322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54878639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481335 + ... + 481448.

It is an arithmetic number, because the mean of its divisors is an integer number (9627840).

Almost surely, 2^54878631 is an apocalyptic number.

54878631 is a deficient number, since it is larger than the sum of its proper divisors (22144089).

54878631 is a wasteful number, since it uses less digits than its factorization.

54878631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962805.

The product of its digits is 161280, while the sum is 42.

The square root of 54878631 is about 7408.0112715897. The cubic root of 54878631 is about 380.0153064010.

The spelling of 54878631 in words is "fifty-four million, eight hundred seventy-eight thousand, six hundred thirty-one".