54387117 has 12 divisors (see below), whose sum is σ = 79636284. Its totient is φ = 35760960.

The previous prime is 54387103. The next prime is 54387119. The reversal of 54387117 is 71178345.

It can be written as a sum of positive squares in 2 ways, for example, as 17189316 + 37197801 = 4146^2 + 6099^2 .

It is not a de Polignac number, because 54387117 - 2¹⁰ = 54386093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54387119) 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, 40734 + ... + 42047.

It is an arithmetic number, because the mean of its divisors is an integer number (6636357).

Almost surely, 2^54387117 is an apocalyptic number.

It is an amenable number.

54387117 is a deficient number, since it is larger than the sum of its proper divisors (25249167).

54387117 is a wasteful number, since it uses less digits than its factorization.

54387117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82860 (or 82857 counting only the distinct ones).

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

The square root of 54387117 is about 7374.7621656566. The cubic root of 54387117 is about 378.8773815896.

The spelling of 54387117 in words is "fifty-four million, three hundred eighty-seven thousand, one hundred seventeen".