27561252 has 36 divisors (see below), whose sum is σ = 66628016. Its totient is φ = 8867040.

The previous prime is 27561251. The next prime is 27561257. The reversal of 27561252 is 25216572.

It is a super-2 number, since 2×27561252² = 1519245223615008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27561251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8727 + ... + 11457.

Almost surely, 2^27561252 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 27561252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33314008).

27561252 is an abundant number, since it is smaller than the sum of its proper divisors (39066764).

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

27561252 is a wasteful number, since it uses less digits than its factorization.

27561252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796 (or 2765 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 27561252 is about 5249.8811415117. The cubic root of 27561252 is about 302.0644717112.

The spelling of 27561252 in words is "twenty-seven million, five hundred sixty-one thousand, two hundred fifty-two".