27056621 has 2 divisors, whose sum is σ = 27056622. Its totient is φ = 27056620.

The previous prime is 27056593. The next prime is 27056641. The reversal of 27056621 is 12665072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22705225 + 4351396 = 4765^2 + 2086^2 .

It is a cyclic number.

It is not a de Polignac number, because 27056621 - 2²² = 22862317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27056641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13528310 + 13528311.

It is an arithmetic number, because the mean of its divisors is an integer number (13528311).

Almost surely, 2^27056621 is an apocalyptic number.

It is an amenable number.

27056621 is a deficient number, since it is larger than the sum of its proper divisors (1).

27056621 is an equidigital number, since it uses as much as digits as its factorization.

27056621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 27056621 is about 5201.5979275603. The cubic root of 27056621 is about 300.2095609873.

The spelling of 27056621 in words is "twenty-seven million, fifty-six thousand, six hundred twenty-one".