54263631 has 4 divisors (see below), whose sum is σ = 72351512. Its totient is φ = 36175752.

The previous prime is 54263621. The next prime is 54263681. The reversal of 54263631 is 13636245.

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

It is not a de Polignac number, because 54263631 - 2²¹ = 52166479 is a prime.

It is a super-2 number, since 2×54263631² = 5889083298608322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54263621) 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, 9043936 + ... + 9043941.

It is an arithmetic number, because the mean of its divisors is an integer number (18087878).

Almost surely, 2^54263631 is an apocalyptic number.

54263631 is a deficient number, since it is larger than the sum of its proper divisors (18087881).

54263631 is a wasteful number, since it uses less digits than its factorization.

54263631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18087880.

The product of its digits is 12960, while the sum is 30.

The square root of 54263631 is about 7366.3852057844. The cubic root of 54263631 is about 378.5904171458.

Adding to 54263631 its reverse (13636245), we get a palindrome (67899876).

The spelling of 54263631 in words is "fifty-four million, two hundred sixty-three thousand, six hundred thirty-one".