54978936 has 16 divisors (see below), whose sum is σ = 137447400. Its totient is φ = 18326304.

The previous prime is 54978923. The next prime is 54978941. The reversal of 54978936 is 63987945.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145371 + ... + 1145418.

Almost surely, 2^54978936 is an apocalyptic number.

It is an amenable number.

54978936 is an abundant number, since it is smaller than the sum of its proper divisors (82468464).

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

54978936 is a wasteful number, since it uses less digits than its factorization.

54978936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290798 (or 2290794 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 54978936 is about 7414.7782165079. The cubic root of 54978936 is about 380.2466911555.

Subtracting 54978936 from its reverse (63987945), we obtain a palindrome (9009009).

The spelling of 54978936 in words is "fifty-four million, nine hundred seventy-eight thousand, nine hundred thirty-six".