54979680 has 96 divisors (see below), whose sum is σ = 197938944. Its totient is φ = 12566016.

The previous prime is 54979633. The next prime is 54979693. The reversal of 54979680 is 8697945.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4822 + ... + 11541.

It is an arithmetic number, because the mean of its divisors is an integer number (2061864).

Almost surely, 2^54979680 is an apocalyptic number.

It is an amenable number.

54979680 is an abundant number, since it is smaller than the sum of its proper divisors (142959264).

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

54979680 is a wasteful number, since it uses less digits than its factorization.

54979680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16388 (or 16380 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 54979680 is about 7414.8283864160. The cubic root of 54979680 is about 380.2484063715.

The spelling of 54979680 in words is "fifty-four million, nine hundred seventy-nine thousand, six hundred eighty".