25259623 has 2 divisors, whose sum is σ = 25259624. Its totient is φ = 25259622.

The previous prime is 25259593. The next prime is 25259627. The reversal of 25259623 is 32695252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25259623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25259627) 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, 12629811 + 12629812.

It is an arithmetic number, because the mean of its divisors is an integer number (12629812).

Almost surely, 2^25259623 is an apocalyptic number.

25259623 is a deficient number, since it is larger than the sum of its proper divisors (1).

25259623 is an equidigital number, since it uses as much as digits as its factorization.

25259623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 34.

The square root of 25259623 is about 5025.8952436357. The cubic root of 25259623 is about 293.4104797375.

The spelling of 25259623 in words is "twenty-five million, two hundred fifty-nine thousand, six hundred twenty-three".