25560319 has 2 divisors, whose sum is σ = 25560320. Its totient is φ = 25560318.

The previous prime is 25560317. The next prime is 25560323. The reversal of 25560319 is 91306552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25560319 - 2¹ = 25560317 is a prime.

It is a super-2 number, since 2×25560319² = 1306659814763522, which contains 22 as substring.

Together with 25560317, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25560313) 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, 12780159 + 12780160.

It is an arithmetic number, because the mean of its divisors is an integer number (12780160).

Almost surely, 2^25560319 is an apocalyptic number.

25560319 is a deficient number, since it is larger than the sum of its proper divisors (1).

25560319 is an equidigital number, since it uses as much as digits as its factorization.

25560319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 25560319 is about 5055.7214124198. The cubic root of 25560319 is about 294.5701640054.

The spelling of 25560319 in words is "twenty-five million, five hundred sixty thousand, three hundred nineteen".