25628719 has 2 divisors, whose sum is σ = 25628720. Its totient is φ = 25628718.

The previous prime is 25628717. The next prime is 25628737. The reversal of 25628719 is 91782652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25628719 - 2¹ = 25628717 is a prime.

It is a super-2 number, since 2×25628719² = 1313662475161922, which contains 22 as substring.

Together with 25628717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25628717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12814359 + 12814360.

It is an arithmetic number, because the mean of its divisors is an integer number (12814360).

Almost surely, 2^25628719 is an apocalyptic number.

25628719 is a deficient number, since it is larger than the sum of its proper divisors (1).

25628719 is an equidigital number, since it uses as much as digits as its factorization.

25628719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 25628719 is about 5062.4815061391. The cubic root of 25628719 is about 294.8326888091.

The spelling of 25628719 in words is "twenty-five million, six hundred twenty-eight thousand, seven hundred nineteen".