27750000305 has 8 divisors (see below), whose sum is σ = 33472540392. Its totient is φ = 22084973568.

The previous prime is 27750000287. The next prime is 27750000349. The reversal of 27750000305 is 50300005772.

It can be written as a sum of positive squares in 4 ways, for example, as 173080336 + 27576919969 = 13156^2 + 166063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27750000305 - 2⁶ = 27750000241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14377274 + ... + 14379203.

It is an arithmetic number, because the mean of its divisors is an integer number (4184067549).

Almost surely, 2^27750000305 is an apocalyptic number.

It is an amenable number.

27750000305 is a deficient number, since it is larger than the sum of its proper divisors (5722540087).

27750000305 is a wasteful number, since it uses less digits than its factorization.

27750000305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28756675.

The product of its (nonzero) digits is 7350, while the sum is 29.

The spelling of 27750000305 in words is "twenty-seven billion, seven hundred fifty million, three hundred five", and thus it is an aban number.