55516100077 has 2 divisors, whose sum is σ = 55516100078. Its totient is φ = 55516100076.

The previous prime is 55516100053. The next prime is 55516100083. The reversal of 55516100077 is 77000161555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36728189316 + 18787910761 = 191646^2 + 137069^2 .

It is a cyclic number.

It is not a de Polignac number, because 55516100077 - 2⁷ = 55516099949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55516100177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27758050038 + 27758050039.

It is an arithmetic number, because the mean of its divisors is an integer number (27758050039).

Almost surely, 2^55516100077 is an apocalyptic number.

It is an amenable number.

55516100077 is a deficient number, since it is larger than the sum of its proper divisors (1).

55516100077 is an equidigital number, since it uses as much as digits as its factorization.

55516100077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36750, while the sum is 37.

The spelling of 55516100077 in words is "fifty-five billion, five hundred sixteen million, one hundred thousand, seventy-seven".