54388131 has 16 divisors (see below), whose sum is σ = 83533824. Its totient is φ = 30832704.

The previous prime is 54388109. The next prime is 54388153. The reversal of 54388131 is 13188345.

It is an interprime number because it is at equal distance from previous prime (54388109) and next prime (54388153).

It is not a de Polignac number, because 54388131 - 2⁶ = 54388067 is a prime.

It is a super-2 number, since 2×54388131² = 5916137587346322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54388092 and 54388101.

It is not an unprimeable number, because it can be changed into a prime (54388231) 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, 7530 + ... + 12863.

It is an arithmetic number, because the mean of its divisors is an integer number (5220864).

Almost surely, 2^54388131 is an apocalyptic number.

54388131 is a deficient number, since it is larger than the sum of its proper divisors (29145693).

54388131 is a wasteful number, since it uses less digits than its factorization.

54388131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20530.

The product of its digits is 11520, while the sum is 33.

The square root of 54388131 is about 7374.8309133159. The cubic root of 54388131 is about 378.8797361869.

The spelling of 54388131 in words is "fifty-four million, three hundred eighty-eight thousand, one hundred thirty-one".