27995265 has 48 divisors (see below), whose sum is σ = 51667200. Its totient is φ = 13982976.

The previous prime is 27995207. The next prime is 27995291. The reversal of 27995265 is 56259972.

It is not a de Polignac number, because 27995265 - 2¹³ = 27987073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27995265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117016 + ... + 117254.

It is an arithmetic number, because the mean of its divisors is an integer number (1076400).

Almost surely, 2^27995265 is an apocalyptic number.

It is an amenable number.

27995265 is a deficient number, since it is larger than the sum of its proper divisors (23671935).

27995265 is a wasteful number, since it uses less digits than its factorization.

27995265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 403 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 27995265 is about 5291.0551877674. The cubic root of 27995265 is about 303.6417792598.

The spelling of 27995265 in words is "twenty-seven million, nine hundred ninety-five thousand, two hundred sixty-five".