27224261 has 2 divisors, whose sum is σ = 27224262. Its totient is φ = 27224260.

The previous prime is 27224257. The next prime is 27224273. The reversal of 27224261 is 16242272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26204161 + 1020100 = 5119^2 + 1010^2 .

It is a cyclic number.

It is not a de Polignac number, because 27224261 - 2² = 27224257 is a prime.

It is a super-2 number, since 2×27224261² = 1482320773992242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27224261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27220261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13612130 + 13612131.

It is an arithmetic number, because the mean of its divisors is an integer number (13612131).

Almost surely, 2^27224261 is an apocalyptic number.

It is an amenable number.

27224261 is a deficient number, since it is larger than the sum of its proper divisors (1).

27224261 is an equidigital number, since it uses as much as digits as its factorization.

27224261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 27224261 is about 5217.6873229430. The cubic root of 27224261 is about 300.8283072154.

The spelling of 27224261 in words is "twenty-seven million, two hundred twenty-four thousand, two hundred sixty-one".