27808050253 has 4 divisors (see below), whose sum is σ = 28011028860. Its totient is φ = 27605071648.

The previous prime is 27808050233. The next prime is 27808050293. The reversal of 27808050253 is 35205080872.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17004942409 + 10803107844 = 130403^2 + 103938^2 .

It is a cyclic number.

It is not a de Polignac number, because 27808050253 - 2³³ = 19218115661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27808050233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101489098 + ... + 101489371.

It is an arithmetic number, because the mean of its divisors is an integer number (7002757215).

Almost surely, 2^27808050253 is an apocalyptic number.

It is an amenable number.

27808050253 is a deficient number, since it is larger than the sum of its proper divisors (202978607).

27808050253 is a wasteful number, since it uses less digits than its factorization.

27808050253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202978606.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 27808050253 in words is "twenty-seven billion, eight hundred eight million, fifty thousand, two hundred fifty-three".