27225472 has 32 divisors (see below), whose sum is σ = 54535320. Its totient is φ = 13538304.

The previous prime is 27225467. The next prime is 27225481. The reversal of 27225472 is 27452272.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28588 + ... + 29524.

Almost surely, 2^27225472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27225472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27267660).

27225472 is an abundant number, since it is smaller than the sum of its proper divisors (27309848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27225472 is an equidigital number, since it uses as much as digits as its factorization.

27225472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1166 counting only the distinct ones).

The product of its digits is 15680, while the sum is 31.

The square root of 27225472 is about 5217.8033692350. The cubic root of 27225472 is about 300.8327676692.

The spelling of 27225472 in words is "twenty-seven million, two hundred twenty-five thousand, four hundred seventy-two".