27550005280530 has 64 divisors (see below), whose sum is σ = 67027485132288. Its totient is φ = 7245842964480.

The previous prime is 27550005280459. The next prime is 27550005280549. The reversal of 27550005280530 is 3508250005572.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99237015 + ... + 99514245.

It is an arithmetic number, because the mean of its divisors is an integer number (1047304455192).

Almost surely, 2^{27550005280530} is an apocalyptic number.

27550005280530 is an abundant number, since it is smaller than the sum of its proper divisors (39477479851758).

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

27550005280530 is a wasteful number, since it uses less digits than its factorization.

27550005280530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322691.

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 27550005280530 in words is "twenty-seven trillion, five hundred fifty billion, five million, two hundred eighty thousand, five hundred thirty".