27780252550530 has 64 divisors (see below), whose sum is σ = 66967932504960. Its totient is φ = 7375312710144.

The previous prime is 27780252550513. The next prime is 27780252550549. The reversal of 27780252550530 is 3505525208772.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5628486 + ... + 9340254.

It is an arithmetic number, because the mean of its divisors is an integer number (1046373945390).

Almost surely, 2^{27780252550530} is an apocalyptic number.

27780252550530 is an abundant number, since it is smaller than the sum of its proper divisors (39187679954430).

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

27780252550530 is a wasteful number, since it uses less digits than its factorization.

27780252550530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712883.

The product of its (nonzero) digits is 5880000, while the sum is 51.

The spelling of 27780252550530 in words is "twenty-seven trillion, seven hundred eighty billion, two hundred fifty-two million, five hundred fifty thousand, five hundred thirty".