27225861 has 24 divisors (see below), whose sum is σ = 39938976. Its totient is φ = 16398720.

The previous prime is 27225797. The next prime is 27225871. The reversal of 27225861 is 16852272.

It is not a de Polignac number, because 27225861 - 2⁶ = 27225797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27225871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207766 + ... + 207896.

It is an arithmetic number, because the mean of its divisors is an integer number (1664124).

Almost surely, 2^27225861 is an apocalyptic number.

It is an amenable number.

27225861 is a deficient number, since it is larger than the sum of its proper divisors (12713115).

27225861 is a wasteful number, since it uses less digits than its factorization.

27225861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 220 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 27225861 is about 5217.8406453245. The cubic root of 27225861 is about 300.8342004376.

The spelling of 27225861 in words is "twenty-seven million, two hundred twenty-five thousand, eight hundred sixty-one".