12255631 has 2 divisors, whose sum is σ = 12255632. Its totient is φ = 12255630.

The previous prime is 12255599. The next prime is 12255637. The reversal of 12255631 is 13655221.

12255631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12255631 - 2⁵ = 12255599 is a prime.

It is a super-2 number, since 2×12255631² = 300400982416322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12255596 and 12255605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12255637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6127815 + 6127816.

It is an arithmetic number, because the mean of its divisors is an integer number (6127816).

Almost surely, 2^12255631 is an apocalyptic number.

12255631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12255631 is an equidigital number, since it uses as much as digits as its factorization.

12255631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 12255631 is about 3500.8043361491. The cubic root of 12255631 is about 230.5571307796.

The spelling of 12255631 in words is "twelve million, two hundred fifty-five thousand, six hundred thirty-one".