54977517 has 12 divisors (see below), whose sum is σ = 90756640. Its totient is φ = 31415688.

The previous prime is 54977509. The next prime is 54977537. The reversal of 54977517 is 71577945.

It is not a de Polignac number, because 54977517 - 2³ = 54977509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54977537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436267 + ... + 436392.

Almost surely, 2^54977517 is an apocalyptic number.

It is an amenable number.

54977517 is a deficient number, since it is larger than the sum of its proper divisors (35779123).

54977517 is a wasteful number, since it uses less digits than its factorization.

54977517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872672 (or 872669 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

The square root of 54977517 is about 7414.6825286050. The cubic root of 54977517 is about 380.2434197529.

The spelling of 54977517 in words is "fifty-four million, nine hundred seventy-seven thousand, five hundred seventeen".