2555116687 has 2 divisors, whose sum is σ = 2555116688. Its totient is φ = 2555116686.

The previous prime is 2555116651. The next prime is 2555116721. The reversal of 2555116687 is 7866115552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2555116687 - 2⁷ = 2555116559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555116387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277558343 + 1277558344.

It is an arithmetic number, because the mean of its divisors is an integer number (1277558344).

Almost surely, 2^2555116687 is an apocalyptic number.

2555116687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555116687 is an equidigital number, since it uses as much as digits as its factorization.

2555116687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 46.

The square root of 2555116687 is about 50548.1620536296. The cubic root of 2555116687 is about 1367.1103757834.

The spelling of 2555116687 in words is "two billion, five hundred fifty-five million, one hundred sixteen thousand, six hundred eighty-seven".