54177813 has 6 divisors (see below), whose sum is σ = 78256854. Its totient is φ = 36118536.

The previous prime is 54177791. The next prime is 54177833. The reversal of 54177813 is 31877145.

It can be written as a sum of positive squares in only one way, i.e., 53100369 + 1077444 = 7287^2 + 1038^2 .

It is not a de Polignac number, because 54177813 - 2¹⁶ = 54112277 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54177833) 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, 3009870 + ... + 3009887.

It is an arithmetic number, because the mean of its divisors is an integer number (13042809).

Almost surely, 2^54177813 is an apocalyptic number.

It is an amenable number.

54177813 is a deficient number, since it is larger than the sum of its proper divisors (24079041).

54177813 is a wasteful number, since it uses less digits than its factorization.

54177813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019763 (or 6019760 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 54177813 is about 7360.5579272226. The cubic root of 54177813 is about 378.3907314357.

The spelling of 54177813 in words is "fifty-four million, one hundred seventy-seven thousand, eight hundred thirteen".