55608978 has 32 divisors (see below), whose sum is σ = 116992512. Its totient is φ = 17596800.

The previous prime is 55608967. The next prime is 55609027. The reversal of 55608978 is 87980655.

It is a Curzon 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, 7038 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (3656016).

Almost surely, 2^55608978 is an apocalyptic number.

55608978 is an abundant number, since it is smaller than the sum of its proper divisors (61383534).

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

55608978 is a wasteful number, since it uses less digits than its factorization.

55608978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730.

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 55608978 is about 7457.1427504105. The cubic root of 55608978 is about 381.6936818678.

The spelling of 55608978 in words is "fifty-five million, six hundred eight thousand, nine hundred seventy-eight".