27228025 has 18 divisors (see below), whose sum is σ = 37115246. Its totient is φ = 19800000.

The previous prime is 27228017. The next prime is 27228029. The reversal of 27228025 is 52082272.

It can be written as a sum of positive squares in 3 ways, for example, as 156816 + 27071209 = 396^2 + 5203^2 .

It is not a de Polignac number, because 27228025 - 2³ = 27228017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27227984 and 27228002.

It is not an unprimeable number, because it can be changed into a prime (27228029) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1476 + ... + 7525.

Almost surely, 2^27228025 is an apocalyptic number.

27228025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27228025 is a deficient number, since it is larger than the sum of its proper divisors (9887221).

27228025 is a wasteful number, since it uses less digits than its factorization.

27228025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9033 (or 9017 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 27228025 is about 5218.0480066784. The cubic root of 27228025 is about 300.8421706534.

The spelling of 27228025 in words is "twenty-seven million, two hundred twenty-eight thousand, twenty-five".