27551028 has 12 divisors (see below), whose sum is σ = 64285760. Its totient is φ = 9183672.

The previous prime is 27551009. The next prime is 27551039. The reversal of 27551028 is 82015572.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 27550986 and 27551004.

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 3 ways as a sum of consecutive naturals, for example, 1147948 + ... + 1147971.

Almost surely, 2^27551028 is an apocalyptic number.

It is an amenable number.

27551028 is an abundant number, since it is smaller than the sum of its proper divisors (36734732).

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

27551028 is a wasteful number, since it uses less digits than its factorization.

27551028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295926 (or 2295924 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 27551028 is about 5248.9073148609. The cubic root of 27551028 is about 302.0271162588.

The spelling of 27551028 in words is "twenty-seven million, five hundred fifty-one thousand, twenty-eight".