55515060577 has 2 divisors, whose sum is σ = 55515060578. Its totient is φ = 55515060576.

The previous prime is 55515060563. The next prime is 55515060581. The reversal of 55515060577 is 77506051555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48015327376 + 7499733201 = 219124^2 + 86601^2 .

It is a cyclic number.

It is not a de Polignac number, because 55515060577 - 2⁷ = 55515060449 is a prime.

It is not a weakly prime, because it can be changed into another prime (55515060527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27757530288 + 27757530289.

It is an arithmetic number, because the mean of its divisors is an integer number (27757530289).

Almost surely, 2^55515060577 is an apocalyptic number.

It is an amenable number.

55515060577 is a deficient number, since it is larger than the sum of its proper divisors (1).

55515060577 is an equidigital number, since it uses as much as digits as its factorization.

55515060577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918750, while the sum is 46.

The spelling of 55515060577 in words is "fifty-five billion, five hundred fifteen million, sixty thousand, five hundred seventy-seven".