27804225 has 12 divisors (see below), whose sum is σ = 45969776. Its totient is φ = 14828880.

The previous prime is 27804221. The next prime is 27804233. The reversal of 27804225 is 52240872.

It is not a de Polignac number, because 27804225 - 2² = 27804221 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27804192 and 27804201.

It is not an unprimeable number, because it can be changed into a prime (27804221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185287 + ... + 185436.

Almost surely, 2^27804225 is an apocalyptic number.

27804225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27804225 is a deficient number, since it is larger than the sum of its proper divisors (18165551).

27804225 is a wasteful number, since it uses less digits than its factorization.

27804225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370736 (or 370731 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 27804225 is about 5272.9711738260. The cubic root of 27804225 is about 302.9495172352.

The spelling of 27804225 in words is "twenty-seven million, eight hundred four thousand, two hundred twenty-five".