27550083181 has 2 divisors, whose sum is σ = 27550083182. Its totient is φ = 27550083180.

The previous prime is 27550083167. The next prime is 27550083221. The reversal of 27550083181 is 18138005572.

It is an a-pointer prime, because the next prime (27550083221) can be obtained adding 27550083181 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19179480100 + 8370603081 = 138490^2 + 91491^2 .

It is a cyclic number.

It is not a de Polignac number, because 27550083181 - 2⁵ = 27550083149 is a prime.

It is a super-2 number, since 2×27550083181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27550089181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13775041590 + 13775041591.

It is an arithmetic number, because the mean of its divisors is an integer number (13775041591).

Almost surely, 2^27550083181 is an apocalyptic number.

It is an amenable number.

27550083181 is a deficient number, since it is larger than the sum of its proper divisors (1).

27550083181 is an equidigital number, since it uses as much as digits as its factorization.

27550083181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 27550083181 in words is "twenty-seven billion, five hundred fifty million, eighty-three thousand, one hundred eighty-one".