25655423 has 2 divisors, whose sum is σ = 25655424. Its totient is φ = 25655422.

The previous prime is 25655417. The next prime is 25655437. The reversal of 25655423 is 32455652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25655423 - 2⁸ = 25655167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25655423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25652423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12827711 + 12827712.

It is an arithmetic number, because the mean of its divisors is an integer number (12827712).

Almost surely, 2^25655423 is an apocalyptic number.

25655423 is a deficient number, since it is larger than the sum of its proper divisors (1).

25655423 is an equidigital number, since it uses as much as digits as its factorization.

25655423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 32.

The square root of 25655423 is about 5065.1182612058. The cubic root of 25655423 is about 294.9350541698.

The spelling of 25655423 in words is "twenty-five million, six hundred fifty-five thousand, four hundred twenty-three".