25719611 has 2 divisors, whose sum is σ = 25719612. Its totient is φ = 25719610.

The previous prime is 25719601. The next prime is 25719619. The reversal of 25719611 is 11691752.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25719611 is a prime.

It is a super-2 number, since 2×25719611² = 1322996779982642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25719619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12859805 + 12859806.

It is an arithmetic number, because the mean of its divisors is an integer number (12859806).

Almost surely, 2^25719611 is an apocalyptic number.

25719611 is a deficient number, since it is larger than the sum of its proper divisors (1).

25719611 is an equidigital number, since it uses as much as digits as its factorization.

25719611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 32.

The square root of 25719611 is about 5071.4505814412. The cubic root of 25719611 is about 295.1808179982.

The spelling of 25719611 in words is "twenty-five million, seven hundred nineteen thousand, six hundred eleven".