25928812519 has 2 divisors, whose sum is σ = 25928812520. Its totient is φ = 25928812518.

The previous prime is 25928812499. The next prime is 25928812523. The reversal of 25928812519 is 91521882952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25928812519 is a prime.

It is a super-2 number, since 2×25928812519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25928812589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12964406259 + 12964406260.

It is an arithmetic number, because the mean of its divisors is an integer number (12964406260).

Almost surely, 2^25928812519 is an apocalyptic number.

25928812519 is a deficient number, since it is larger than the sum of its proper divisors (1).

25928812519 is an equidigital number, since it uses as much as digits as its factorization.

25928812519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 52.

The spelling of 25928812519 in words is "twenty-five billion, nine hundred twenty-eight million, eight hundred twelve thousand, five hundred nineteen".