27265261 has 4 divisors (see below), whose sum is σ = 27281692. Its totient is φ = 27248832.

The previous prime is 27265243. The next prime is 27265283. The reversal of 27265261 is 16256272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2205225 + 25060036 = 1485^2 + 5006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27265261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27265201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5406 + ... + 9151.

It is an arithmetic number, because the mean of its divisors is an integer number (6820423).

Almost surely, 2^27265261 is an apocalyptic number.

It is an amenable number.

27265261 is a deficient number, since it is larger than the sum of its proper divisors (16431).

27265261 is a wasteful number, since it uses less digits than its factorization.

27265261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16430.

The product of its digits is 10080, while the sum is 31.

The square root of 27265261 is about 5221.6147885496. The cubic root of 27265261 is about 300.9792482465.

The spelling of 27265261 in words is "twenty-seven million, two hundred sixty-five thousand, two hundred sixty-one".