12555311 has 2 divisors, whose sum is σ = 12555312. Its totient is φ = 12555310.

The previous prime is 12555293. The next prime is 12555349. The reversal of 12555311 is 11355521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12555311 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12555511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6277655 + 6277656.

It is an arithmetic number, because the mean of its divisors is an integer number (6277656).

Almost surely, 2^12555311 is an apocalyptic number.

12555311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12555311 is an equidigital number, since it uses as much as digits as its factorization.

12555311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 750, while the sum is 23.

The square root of 12555311 is about 3543.3474286330. The cubic root of 12555311 is about 232.4212459210.

The spelling of 12555311 in words is "twelve million, five hundred fifty-five thousand, three hundred eleven".