2555776331 has 2 divisors, whose sum is σ = 2555776332. Its totient is φ = 2555776330.

The previous prime is 2555776319. The next prime is 2555776357. The reversal of 2555776331 is 1336775552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2555776331 - 2³⁰ = 1482034507 is a prime.

It is a super-2 number, since 2×2555776331² = 13063985308199643122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2555766331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277888165 + 1277888166.

It is an arithmetic number, because the mean of its divisors is an integer number (1277888166).

Almost surely, 2^2555776331 is an apocalyptic number.

2555776331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555776331 is an equidigital number, since it uses as much as digits as its factorization.

2555776331 is an evil number, because the sum of its binary digits is even.

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

The square root of 2555776331 is about 50554.6865384407. The cubic root of 2555776331 is about 1367.2280127544.

The spelling of 2555776331 in words is "two billion, five hundred fifty-five million, seven hundred seventy-six thousand, three hundred thirty-one".