27550028028 has 48 divisors (see below), whose sum is σ = 68926394880. Its totient is φ = 8533734144.

The previous prime is 27550028027. The next prime is 27550028039. The reversal of 27550028028 is 82082005572.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27550028027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838626 + ... + 870857.

It is an arithmetic number, because the mean of its divisors is an integer number (1435966560).

Almost surely, 2^27550028028 is an apocalyptic number.

It is an amenable number.

27550028028 is an abundant number, since it is smaller than the sum of its proper divisors (41376366852).

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

27550028028 is a wasteful number, since it uses less digits than its factorization.

27550028028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709586 (or 1709584 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 27550028028 in words is "twenty-seven billion, five hundred fifty million, twenty-eight thousand, twenty-eight".