2057447519 has 2 divisors, whose sum is σ = 2057447520. Its totient is φ = 2057447518.

The previous prime is 2057447501. The next prime is 2057447521. The reversal of 2057447519 is 9157447502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2057447519 is a prime.

It is a super-2 number, since 2×2057447519² = 8466180586878510722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2057447521, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2057447519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2057447569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028723759 + 1028723760.

It is an arithmetic number, because the mean of its divisors is an integer number (1028723760).

Almost surely, 2^2057447519 is an apocalyptic number.

2057447519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057447519 is an equidigital number, since it uses as much as digits as its factorization.

2057447519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 2057447519 is about 45359.0952180486. The cubic root of 2057447519 is about 1271.8705811444.

The spelling of 2057447519 in words is "two billion, fifty-seven million, four hundred forty-seven thousand, five hundred nineteen".