54939525139 has 2 divisors, whose sum is σ = 54939525140. Its totient is φ = 54939525138.

The previous prime is 54939525131. The next prime is 54939525143. The reversal of 54939525139 is 93152593945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54939525139 - 2³ = 54939525131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54939525139.

It is not a weakly prime, because it can be changed into another prime (54939525131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27469762569 + 27469762570.

It is an arithmetic number, because the mean of its divisors is an integer number (27469762570).

Almost surely, 2^54939525139 is an apocalyptic number.

54939525139 is a deficient number, since it is larger than the sum of its proper divisors (1).

54939525139 is an equidigital number, since it uses as much as digits as its factorization.

54939525139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6561000, while the sum is 55.

The spelling of 54939525139 in words is "fifty-four billion, nine hundred thirty-nine million, five hundred twenty-five thousand, one hundred thirty-nine".