54514475778 has 48 divisors (see below), whose sum is σ = 128615978304. Its totient is φ = 15356184480.

The previous prime is 54514475753. The next prime is 54514475797. The reversal of 54514475778 is 87757441545.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1284925 + ... + 1326672.

It is an arithmetic number, because the mean of its divisors is an integer number (2679499548).

Almost surely, 2^54514475778 is an apocalyptic number.

54514475778 is an abundant number, since it is smaller than the sum of its proper divisors (74101502526).

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

54514475778 is a wasteful number, since it uses less digits than its factorization.

54514475778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611687 (or 2611680 counting only the distinct ones).

The product of its digits is 21952000, while the sum is 57.

The spelling of 54514475778 in words is "fifty-four billion, five hundred fourteen million, four hundred seventy-five thousand, seven hundred seventy-eight".