54715878 has 32 divisors (see below), whose sum is σ = 138961920. Its totient is φ = 15633000.

The previous prime is 54715867. The next prime is 54715879. The reversal of 54715878 is 87851745.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54715879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71998 + ... + 72753.

It is an arithmetic number, because the mean of its divisors is an integer number (4342560).

Almost surely, 2^54715878 is an apocalyptic number.

54715878 is an abundant number, since it is smaller than the sum of its proper divisors (84246042).

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

54715878 is a wasteful number, since it uses less digits than its factorization.

54715878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144769 (or 144763 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The square root of 54715878 is about 7397.0181830248. The cubic root of 54715878 is about 379.6392652337.

The spelling of 54715878 in words is "fifty-four million, seven hundred fifteen thousand, eight hundred seventy-eight".