54978183 has 40 divisors (see below), whose sum is σ = 89443200. Its totient is φ = 33452352.

The previous prime is 54978181. The next prime is 54978199. The reversal of 54978183 is 38187945.

54978183 is a `hidden beast` number, since 5 + 497 + 81 + 83 = 666.

It is not a de Polignac number, because 54978183 - 2¹ = 54978181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54978181) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 114538 + ... + 115016.

It is an arithmetic number, because the mean of its divisors is an integer number (2236080).

Almost surely, 2^54978183 is an apocalyptic number.

54978183 is a deficient number, since it is larger than the sum of its proper divisors (34465017).

54978183 is a wasteful number, since it uses less digits than its factorization.

54978183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 604 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 54978183 is about 7414.7274393601. The cubic root of 54978183 is about 380.2449551751.

The spelling of 54978183 in words is "fifty-four million, nine hundred seventy-eight thousand, one hundred eighty-three".