27750005500557 has 16 divisors (see below), whose sum is σ = 37490123099520. Its totient is φ = 18255772288512.

The previous prime is 27750005500549. The next prime is 27750005500561. The reversal of 27750005500557 is 75500550005772.

It is not a de Polignac number, because 27750005500557 - 2³ = 27750005500549 is a prime.

It is a super-2 number, since 2×27750005500557² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27750005500057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103178428 + ... + 103447029.

It is an arithmetic number, because the mean of its divisors is an integer number (2343132693720).

Almost surely, 2^{27750005500557} is an apocalyptic number.

It is an amenable number.

27750005500557 is a deficient number, since it is larger than the sum of its proper divisors (9740117598963).

27750005500557 is a wasteful number, since it uses less digits than its factorization.

27750005500557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206626052.

The product of its (nonzero) digits is 2143750, while the sum is 48.

The spelling of 27750005500557 in words is "twenty-seven trillion, seven hundred fifty billion, five million, five hundred thousand, five hundred fifty-seven".