27221265 has 20 divisors (see below), whose sum is σ = 48797364. Its totient is φ = 14517792.

The previous prime is 27221251. The next prime is 27221287. The reversal of 27221265 is 56212272.

It can be written as a sum of positive squares in 2 ways, for example, as 12383361 + 14837904 = 3519^2 + 3852^2 .

It is not a de Polignac number, because 27221265 - 2¹¹ = 27219217 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33202 + ... + 34011.

Almost surely, 2^27221265 is an apocalyptic number.

It is an amenable number.

27221265 is a deficient number, since it is larger than the sum of its proper divisors (21576099).

27221265 is an equidigital number, since it uses as much as digits as its factorization.

27221265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67230 (or 67221 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 27221265 is about 5217.4002146663. The cubic root of 27221265 is about 300.8172715357.

The spelling of 27221265 in words is "twenty-seven million, two hundred twenty-one thousand, two hundred sixty-five".