27755252 has 48 divisors (see below), whose sum is σ = 57697920. Its totient is φ = 11436672.

The previous prime is 27755243. The next prime is 27755263. The reversal of 27755252 is 25255772.

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 15 ways as a sum of consecutive naturals, for example, 87398 + ... + 87714.

It is an arithmetic number, because the mean of its divisors is an integer number (1202040).

Almost surely, 2^27755252 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 27755252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28848960).

27755252 is an abundant number, since it is smaller than the sum of its proper divisors (29942668).

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

27755252 is a wasteful number, since it uses less digits than its factorization.

27755252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 438 counting only the distinct ones).

The product of its digits is 49000, while the sum is 35.

The square root of 27755252 is about 5268.3253506214. The cubic root of 27755252 is about 302.7715458907.

The spelling of 27755252 in words is "twenty-seven million, seven hundred fifty-five thousand, two hundred fifty-two".