2561041519 has 2 divisors, whose sum is σ = 2561041520. Its totient is φ = 2561041518.

The previous prime is 2561041477. The next prime is 2561041583. The reversal of 2561041519 is 9151401652.

It is a happy number.

2561041519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2561041519 is a prime.

It is a super-2 number, since 2×2561041519² = 13117867324083654722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2561045519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280520759 + 1280520760.

It is an arithmetic number, because the mean of its divisors is an integer number (1280520760).

Almost surely, 2^2561041519 is an apocalyptic number.

2561041519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2561041519 is an equidigital number, since it uses as much as digits as its factorization.

2561041519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 2561041519 is about 50606.7339293893. The cubic root of 2561041519 is about 1368.1662501504.

The spelling of 2561041519 in words is "two billion, five hundred sixty-one million, forty-one thousand, five hundred nineteen".