27775265 has 16 divisors (see below), whose sum is σ = 38206080. Its totient is φ = 18988800.

The previous prime is 27775249. The next prime is 27775337. The reversal of 27775265 is 56257772.

It is not a de Polignac number, because 27775265 - 2⁴ = 27775249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13046 + ... + 15024.

It is an arithmetic number, because the mean of its divisors is an integer number (2387880).

Almost surely, 2^27775265 is an apocalyptic number.

It is an amenable number.

27775265 is a deficient number, since it is larger than the sum of its proper divisors (10430815).

27775265 is a wasteful number, since it uses less digits than its factorization.

27775265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392.

The product of its digits is 205800, while the sum is 41.

The square root of 27775265 is about 5270.2243785251. The cubic root of 27775265 is about 302.8442998228.

The spelling of 27775265 in words is "twenty-seven million, seven hundred seventy-five thousand, two hundred sixty-five".