2555502504977 has 2 divisors, whose sum is σ = 2555502504978. Its totient is φ = 2555502504976.

The previous prime is 2555502504923. The next prime is 2555502505007. The reversal of 2555502504977 is 7794052055552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2368148576641 + 187353928336 = 1538879^2 + 432844^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555502504977 - 2²⁰ = 2555501456401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2555502504277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277751252488 + 1277751252489.

It is an arithmetic number, because the mean of its divisors is an integer number (1277751252489).

Almost surely, 2^{2555502504977} is an apocalyptic number.

It is an amenable number.

2555502504977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555502504977 is an equidigital number, since it uses as much as digits as its factorization.

2555502504977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050000, while the sum is 56.

The spelling of 2555502504977 in words is "two trillion, five hundred fifty-five billion, five hundred two million, five hundred four thousand, nine hundred seventy-seven".