2255431631 has 2 divisors, whose sum is σ = 2255431632. Its totient is φ = 2255431630.

The previous prime is 2255431561. The next prime is 2255431639. The reversal of 2255431631 is 1361345522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2255431631 - 2¹⁰ = 2255430607 is a prime.

It is a super-2 number, since 2×2255431631² = 10173943684230640322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2255431639) 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, 1127715815 + 1127715816.

It is an arithmetic number, because the mean of its divisors is an integer number (1127715816).

Almost surely, 2^2255431631 is an apocalyptic number.

2255431631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255431631 is an equidigital number, since it uses as much as digits as its factorization.

2255431631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 2255431631 is about 47491.3848081944. The cubic root of 2255431631 is about 1311.4242868016.

The spelling of 2255431631 in words is "two billion, two hundred fifty-five million, four hundred thirty-one thousand, six hundred thirty-one".