27225197 has 2 divisors, whose sum is σ = 27225198. Its totient is φ = 27225196.

The previous prime is 27225179. The next prime is 27225239. The reversal of 27225197 is 79152272.

Together with previous prime (27225179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24314761 + 2910436 = 4931^2 + 1706^2 .

It is a cyclic number.

It is not a de Polignac number, because 27225197 - 2¹⁶ = 27159661 is a prime.

It is a super-2 number, since 2×27225197² = 1482422703377618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27225127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13612598 + 13612599.

It is an arithmetic number, because the mean of its divisors is an integer number (13612599).

Almost surely, 2^27225197 is an apocalyptic number.

It is an amenable number.

27225197 is a deficient number, since it is larger than the sum of its proper divisors (1).

27225197 is an equidigital number, since it uses as much as digits as its factorization.

27225197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 27225197 is about 5217.7770170830. Note that the first 3 decimals coincide. The cubic root of 27225197 is about 300.8317547784.

The spelling of 27225197 in words is "twenty-seven million, two hundred twenty-five thousand, one hundred ninety-seven".