54507138 has 32 divisors (see below), whose sum is σ = 124901376. Its totient is φ = 15534288.

The previous prime is 54507137. The next prime is 54507139. The reversal of 54507138 is 83170545.

It is an interprime number because it is at equal distance from previous prime (54507137) and next prime (54507139).

It is a junction number, because it is equal to n+sod(n) for n = 54507099 and 54507108.

It is not an unprimeable number, because it can be changed into a prime (54507137) 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, 18045 + ... + 20847.

It is an arithmetic number, because the mean of its divisors is an integer number (3903168).

Almost surely, 2^54507138 is an apocalyptic number.

54507138 is an abundant number, since it is smaller than the sum of its proper divisors (70394238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54507138 is a wasteful number, since it uses less digits than its factorization.

54507138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 54507138 is about 7382.8949606506. The cubic root of 54507138 is about 379.1558778935.

It can be divided in two parts, 54507 and 138, that added together give a palindrome (54645).

The spelling of 54507138 in words is "fifty-four million, five hundred seven thousand, one hundred thirty-eight".