27764225 has 12 divisors (see below), whose sum is σ = 36240240. Its totient is φ = 21042000.

The previous prime is 27764203. The next prime is 27764227. The reversal of 27764225 is 52246772.

It is not a de Polignac number, because 27764225 - 2⁸ = 27763969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27764227) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 28751 + ... + 29700.

It is an arithmetic number, because the mean of its divisors is an integer number (3020020).

Almost surely, 2^27764225 is an apocalyptic number.

27764225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27764225 is a deficient number, since it is larger than the sum of its proper divisors (8476015).

27764225 is a wasteful number, since it uses less digits than its factorization.

27764225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58480 (or 58475 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 27764225 is about 5269.1768806902. The cubic root of 27764225 is about 302.8041700630.

The spelling of 27764225 in words is "twenty-seven million, seven hundred sixty-four thousand, two hundred twenty-five".