25840832519 has 2 divisors, whose sum is σ = 25840832520. Its totient is φ = 25840832518.

The previous prime is 25840832513. The next prime is 25840832593. The reversal of 25840832519 is 91523804852.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25840832519 - 2²⁴ = 25824055303 is a prime.

It is a super-2 number, since 2×25840832519² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25840832513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12920416259 + 12920416260.

It is an arithmetic number, because the mean of its divisors is an integer number (12920416260).

Almost surely, 2^25840832519 is an apocalyptic number.

25840832519 is a deficient number, since it is larger than the sum of its proper divisors (1).

25840832519 is an equidigital number, since it uses as much as digits as its factorization.

25840832519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 25840832519 in words is "twenty-five billion, eight hundred forty million, eight hundred thirty-two thousand, five hundred nineteen".