27206225 has 12 divisors (see below), whose sum is σ = 34373916. Its totient is φ = 21353280.

The previous prime is 27206213. The next prime is 27206237. The reversal of 27206225 is 52260272.

It is an interprime number because it is at equal distance from previous prime (27206213) and next prime (27206237).

It can be written as a sum of positive squares in 6 ways, for example, as 124609 + 27081616 = 353^2 + 5204^2 .

It is not a de Polignac number, because 27206225 - 2⁴ = 27206209 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27206194 and 27206203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8942 + ... + 11591.

It is an arithmetic number, because the mean of its divisors is an integer number (2864493).

Almost surely, 2^27206225 is an apocalyptic number.

27206225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27206225 is a deficient number, since it is larger than the sum of its proper divisors (7167691).

27206225 is a wasteful number, since it uses less digits than its factorization.

27206225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20596 (or 20591 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 27206225 is about 5215.9586846523. The cubic root of 27206225 is about 300.7618598902.

Adding to 27206225 its reverse (52260272), we get a palindrome (79466497).

The spelling of 27206225 in words is "twenty-seven million, two hundred six thousand, two hundred twenty-five".