54979904 has 56 divisors (see below), whose sum is σ = 132039360. Its totient is φ = 22173696.

The previous prime is 54979889. The next prime is 54979931. The reversal of 54979904 is 40997945.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4007 + ... + 11225.

Almost surely, 2^54979904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54979904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66019680).

54979904 is an abundant number, since it is smaller than the sum of its proper divisors (77059456).

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

54979904 is a wasteful number, since it uses less digits than its factorization.

54979904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255 (or 7245 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 54979904 is about 7414.8434912680. The cubic root of 54979904 is about 380.2489227776.

The spelling of 54979904 in words is "fifty-four million, nine hundred seventy-nine thousand, nine hundred four".