55503623177 has 2 divisors, whose sum is σ = 55503623178. Its totient is φ = 55503623176.

The previous prime is 55503623159. The next prime is 55503623239. The reversal of 55503623177 is 77132630555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50488292416 + 5015330761 = 224696^2 + 70819^2 .

It is a cyclic number.

It is not a de Polignac number, because 55503623177 - 2²⁰ = 55502574601 is a prime.

It is not a weakly prime, because it can be changed into another prime (55503622177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27751811588 + 27751811589.

It is an arithmetic number, because the mean of its divisors is an integer number (27751811589).

Almost surely, 2^55503623177 is an apocalyptic number.

It is an amenable number.

55503623177 is a deficient number, since it is larger than the sum of its proper divisors (1).

55503623177 is an equidigital number, since it uses as much as digits as its factorization.

55503623177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 661500, while the sum is 44.

The spelling of 55503623177 in words is "fifty-five billion, five hundred three million, six hundred twenty-three thousand, one hundred seventy-seven".