25928719 has 2 divisors, whose sum is σ = 25928720. Its totient is φ = 25928718.

The previous prime is 25928681. The next prime is 25928731. The reversal of 25928719 is 91782952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25928719 - 2²³ = 17540111 is a prime.

It is a super-2 number, since 2×25928719² = 1344596937961922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25928219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12964359 + 12964360.

It is an arithmetic number, because the mean of its divisors is an integer number (12964360).

Almost surely, 2^25928719 is an apocalyptic number.

25928719 is a deficient number, since it is larger than the sum of its proper divisors (1).

25928719 is an equidigital number, since it uses as much as digits as its factorization.

25928719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 43.

The square root of 25928719 is about 5092.0250392157. The cubic root of 25928719 is about 295.9786286920.

It can be divided in two parts, 2592 and 8719, that added together give a palindrome (11311).

The spelling of 25928719 in words is "twenty-five million, nine hundred twenty-eight thousand, seven hundred nineteen".