54718644 has 12 divisors (see below), whose sum is σ = 127676864. Its totient is φ = 18239544.

The previous prime is 54718637. The next prime is 54718649. The reversal of 54718644 is 44681745.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54718649) 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, 2279932 + ... + 2279955.

Almost surely, 2^54718644 is an apocalyptic number.

It is an amenable number.

54718644 is an abundant number, since it is smaller than the sum of its proper divisors (72958220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54718644 is a wasteful number, since it uses less digits than its factorization.

54718644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559894 (or 4559892 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 54718644 is about 7397.2051478920. The cubic root of 54718644 is about 379.6456623074.

It can be divided in two parts, 547 and 18644, that added together give a palindrome (19191).

The spelling of 54718644 in words is "fifty-four million, seven hundred eighteen thousand, six hundred forty-four".