27328225 has 6 divisors (see below), whose sum is σ = 33887030. Its totient is φ = 21862560.

The previous prime is 27328211. The next prime is 27328229. The reversal of 27328225 is 52282372.

27328225 = 3696² + 3697².

It can be written as a sum of positive squares in 3 ways, for example, as 6315169 + 21013056 = 2513^2 + 4584^2 .

It is not a de Polignac number, because 27328225 - 2⁷ = 27328097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27328229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 546540 + ... + 546589.

Almost surely, 2^27328225 is an apocalyptic number.

27328225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27328225 is the 3697-th centered square number.

It is an amenable number.

27328225 is a deficient number, since it is larger than the sum of its proper divisors (6558805).

27328225 is a wasteful number, since it uses less digits than its factorization.

27328225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093139 (or 1093134 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 27328225 is about 5227.6404811349. The cubic root of 27328225 is about 301.2107551478.

The spelling of 27328225 in words is "twenty-seven million, three hundred twenty-eight thousand, two hundred twenty-five".