54172039 has 2 divisors, whose sum is σ = 54172040. Its totient is φ = 54172038.

The previous prime is 54172007. The next prime is 54172049. The reversal of 54172039 is 93027145.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54172039 - 2⁵ = 54172007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54172039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54172049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27086019 + 27086020.

It is an arithmetic number, because the mean of its divisors is an integer number (27086020).

Almost surely, 2^54172039 is an apocalyptic number.

54172039 is a deficient number, since it is larger than the sum of its proper divisors (1).

54172039 is an equidigital number, since it uses as much as digits as its factorization.

54172039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 54172039 is about 7360.1656910697. The cubic root of 54172039 is about 378.3772886284.

The spelling of 54172039 in words is "fifty-four million, one hundred seventy-two thousand, thirty-nine".