2255561431499 has 2 divisors, whose sum is σ = 2255561431500. Its totient is φ = 2255561431498.

The previous prime is 2255561431471. The next prime is 2255561431511. The reversal of 2255561431499 is 9941341655522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2255561431499 - 2⁸ = 2255561431243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2255561421499) 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, 1127780715749 + 1127780715750.

It is an arithmetic number, because the mean of its divisors is an integer number (1127780715750).

Almost surely, 2^{2255561431499} is an apocalyptic number.

2255561431499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255561431499 is an equidigital number, since it uses as much as digits as its factorization.

2255561431499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664000, while the sum is 56.

The spelling of 2255561431499 in words is "two trillion, two hundred fifty-five billion, five hundred sixty-one million, four hundred thirty-one thousand, four hundred ninety-nine".