27428550 has 24 divisors (see below), whose sum is σ = 68023176. Its totient is φ = 7314240.

The previous prime is 27428543. The next prime is 27428567. The reversal of 27428550 is 5582472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91279 + ... + 91578.

It is an arithmetic number, because the mean of its divisors is an integer number (2834299).

Almost surely, 2^27428550 is an apocalyptic number.

27428550 is an abundant number, since it is smaller than the sum of its proper divisors (40594626).

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

27428550 is a wasteful number, since it uses less digits than its factorization.

27428550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182872 (or 182867 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 27428550 is about 5237.2273198707. The cubic root of 27428550 is about 301.5788979154.

The spelling of 27428550 in words is "twenty-seven million, four hundred twenty-eight thousand, five hundred fifty".