27780550005583 has 2 divisors, whose sum is σ = 27780550005584. Its totient is φ = 27780550005582.

The previous prime is 27780550005529. The next prime is 27780550005587. The reversal of 27780550005583 is 38550005508772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27780550005583 - 2²⁵ = 27780516451151 is a prime.

It is a super-2 number, since 2×27780550005583² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27780550005587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13890275002791 + 13890275002792.

It is an arithmetic number, because the mean of its divisors is an integer number (13890275002792).

Almost surely, 2^{27780550005583} is an apocalyptic number.

27780550005583 is a deficient number, since it is larger than the sum of its proper divisors (1).

27780550005583 is an equidigital number, since it uses as much as digits as its factorization.

27780550005583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760000, while the sum is 55.

The spelling of 27780550005583 in words is "twenty-seven trillion, seven hundred eighty billion, five hundred fifty million, five thousand, five hundred eighty-three".