54815452177 has 2 divisors, whose sum is σ = 54815452178. Its totient is φ = 54815452176.

The previous prime is 54815452063. The next prime is 54815452187. The reversal of 54815452177 is 77125451845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42597244881 + 12218207296 = 206391^2 + 110536^2 .

It is a cyclic number.

It is not a de Polignac number, because 54815452177 - 2⁷ = 54815452049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54815452177.

It is not a weakly prime, because it can be changed into another prime (54815452187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27407726088 + 27407726089.

It is an arithmetic number, because the mean of its divisors is an integer number (27407726089).

Almost surely, 2^54815452177 is an apocalyptic number.

It is an amenable number.

54815452177 is a deficient number, since it is larger than the sum of its proper divisors (1).

54815452177 is an equidigital number, since it uses as much as digits as its factorization.

54815452177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568000, while the sum is 49.

The spelling of 54815452177 in words is "fifty-four billion, eight hundred fifteen million, four hundred fifty-two thousand, one hundred seventy-seven".