27256631 has 2 divisors, whose sum is σ = 27256632. Its totient is φ = 27256630.

The previous prime is 27256601. The next prime is 27256639. The reversal of 27256631 is 13665272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27256631 - 2²² = 23062327 is a prime.

It is a super-2 number, since 2×27256631² = 1485847866940322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1698062 and since 27256631 and 1698062 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27256639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13628315 + 13628316.

It is an arithmetic number, because the mean of its divisors is an integer number (13628316).

Almost surely, 2^27256631 is an apocalyptic number.

27256631 is a deficient number, since it is larger than the sum of its proper divisors (1).

27256631 is an equidigital number, since it uses as much as digits as its factorization.

27256631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 27256631 is about 5220.7883504314. The cubic root of 27256631 is about 300.9474895798.

The spelling of 27256631 in words is "twenty-seven million, two hundred fifty-six thousand, six hundred thirty-one".