54512978 has 12 divisors (see below), whose sum is σ = 88543818. Its totient is φ = 25159680.

The previous prime is 54512977. The next prime is 54512981. The reversal of 54512978 is 87921545.

It can be written as a sum of positive squares in 3 ways, for example, as 23454649 + 31058329 = 4843^2 + 5573^2 .

It is not an unprimeable number, because it can be changed into a prime (54512977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80303 + ... + 80978.

Almost surely, 2^54512978 is an apocalyptic number.

54512978 is a deficient number, since it is larger than the sum of its proper divisors (34030840).

54512978 is a wasteful number, since it uses less digits than its factorization.

54512978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161309 (or 161296 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 54512978 is about 7383.2904588672. The cubic root of 54512978 is about 379.1694185741.

The spelling of 54512978 in words is "fifty-four million, five hundred twelve thousand, nine hundred seventy-eight".