2501561519 has 2 divisors, whose sum is σ = 2501561520. Its totient is φ = 2501561518.

The previous prime is 2501561479. The next prime is 2501561521. The reversal of 2501561519 is 9151651052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2501561519 - 2²⁰ = 2500512943 is a prime.

It is a super-2 number, since 2×2501561519² = 12515620066683174722, which contains 22 as substring.

Together with 2501561521, 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 (2501561599) 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, 1250780759 + 1250780760.

It is an arithmetic number, because the mean of its divisors is an integer number (1250780760).

Almost surely, 2^2501561519 is an apocalyptic number.

2501561519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501561519 is an equidigital number, since it uses as much as digits as its factorization.

2501561519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 35.

The square root of 2501561519 is about 50015.6127524196. The cubic root of 2501561519 is about 1357.4913237973.

The spelling of 2501561519 in words is "two billion, five hundred one million, five hundred sixty-one thousand, five hundred nineteen".