2559427181 has 2 divisors, whose sum is σ = 2559427182. Its totient is φ = 2559427180.

The previous prime is 2559427151. The next prime is 2559427183. The reversal of 2559427181 is 1817249552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2112781225 + 446645956 = 45965^2 + 21134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2559427181 is a prime.

It is a super-2 number, since 2×2559427181² = 13101334989683213522, which contains 22 as substring.

Together with 2559427183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2559427183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279713590 + 1279713591.

It is an arithmetic number, because the mean of its divisors is an integer number (1279713591).

Almost surely, 2^2559427181 is an apocalyptic number.

It is an amenable number.

2559427181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2559427181 is an equidigital number, since it uses as much as digits as its factorization.

2559427181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 44.

The square root of 2559427181 is about 50590.7815812328. The cubic root of 2559427181 is about 1367.8787177811.

The spelling of 2559427181 in words is "two billion, five hundred fifty-nine million, four hundred twenty-seven thousand, one hundred eighty-one".