2561104219 has 2 divisors, whose sum is σ = 2561104220. Its totient is φ = 2561104218.

The previous prime is 2561104177. The next prime is 2561104223. The reversal of 2561104219 is 9124011652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2561104219 - 2¹¹ = 2561102171 is a prime.

It is a super-2 number, since 2×2561104219² = 13118509641159199922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2561104229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280552109 + 1280552110.

It is an arithmetic number, because the mean of its divisors is an integer number (1280552110).

Almost surely, 2^2561104219 is an apocalyptic number.

2561104219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2561104219 is an equidigital number, since it uses as much as digits as its factorization.

2561104219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2561104219 is about 50607.3534083734. The cubic root of 2561104219 is about 1368.1774153116.

The spelling of 2561104219 in words is "two billion, five hundred sixty-one million, one hundred four thousand, two hundred nineteen".