54979660 has 48 divisors (see below), whose sum is σ = 123088896. Its totient is φ = 20580032.

The previous prime is 54979633. The next prime is 54979693. The reversal of 54979660 is 6697945.

54979660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 54979660.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20349 + ... + 22891.

It is an arithmetic number, because the mean of its divisors is an integer number (2564352).

Almost surely, 2^54979660 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 54979660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61544448).

54979660 is an abundant number, since it is smaller than the sum of its proper divisors (68109236).

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

54979660 is a wasteful number, since it uses less digits than its factorization.

54979660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622 (or 2620 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 54979660 is about 7414.8270377670. The cubic root of 54979660 is about 380.2483602638.

The spelling of 54979660 in words is "fifty-four million, nine hundred seventy-nine thousand, six hundred sixty".