27500000500 has 72 divisors (see below), whose sum is σ = 69865777800. Its totient is φ = 9428563200.

The previous prime is 27500000461. The next prime is 27500000519. The reversal of 27500000500 is 500000572.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 158055184 + 27341945316 = 12572^2 + 165354^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 536725 + ... + 585724.

It is an arithmetic number, because the mean of its divisors is an integer number (970358025).

Almost surely, 2^27500000500 is an apocalyptic number.

27500000500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27500000500 is an abundant number, since it is smaller than the sum of its proper divisors (42365777300).

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

27500000500 is a wasteful number, since it uses less digits than its factorization.

27500000500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122482 (or 1122463 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 19.

The spelling of 27500000500 in words is "twenty-seven billion, five hundred million, five hundred", and thus it is an aban number.