27225109 has 4 divisors (see below), whose sum is σ = 28826604. Its totient is φ = 25623616.

The previous prime is 27225091. The next prime is 27225127. The reversal of 27225109 is 90152272.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (27225091) and next prime (27225127).

It can be written as a sum of positive squares in 2 ways, for example, as 16630084 + 10595025 = 4078^2 + 3255^2 .

It is a cyclic number.

It is not a de Polignac number, because 27225109 - 2⁹ = 27224597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27225179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800722 + ... + 800755.

It is an arithmetic number, because the mean of its divisors is an integer number (7206651).

Almost surely, 2^27225109 is an apocalyptic number.

It is an amenable number.

27225109 is a deficient number, since it is larger than the sum of its proper divisors (1601495).

27225109 is a wasteful number, since it uses less digits than its factorization.

27225109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601494.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 27225109 is about 5217.7685843663. The cubic root of 27225109 is about 300.8314306519.

The spelling of 27225109 in words is "twenty-seven million, two hundred twenty-five thousand, one hundred nine".