54592139 has 4 divisors (see below), whose sum is σ = 62391024. Its totient is φ = 46793256.

The previous prime is 54592121. The next prime is 54592157. The reversal of 54592139 is 93129545.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (54592121) and next prime (54592157).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54592139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54592159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3899432 + ... + 3899445.

It is an arithmetic number, because the mean of its divisors is an integer number (15597756).

Almost surely, 2^54592139 is an apocalyptic number.

54592139 is a deficient number, since it is larger than the sum of its proper divisors (7798885).

54592139 is an equidigital number, since it uses as much as digits as its factorization.

54592139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7798884.

The product of its digits is 48600, while the sum is 38.

The square root of 54592139 is about 7388.6493352980. The cubic root of 54592139 is about 379.3528667131.

The spelling of 54592139 in words is "fifty-four million, five hundred ninety-two thousand, one hundred thirty-nine".