25493423 has 2 divisors, whose sum is σ = 25493424. Its totient is φ = 25493422.

The previous prime is 25493417. The next prime is 25493441. The reversal of 25493423 is 32439452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25493423 - 2¹⁶ = 25427887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25493423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25493483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12746711 + 12746712.

It is an arithmetic number, because the mean of its divisors is an integer number (12746712).

Almost surely, 2^25493423 is an apocalyptic number.

25493423 is a deficient number, since it is larger than the sum of its proper divisors (1).

25493423 is an equidigital number, since it uses as much as digits as its factorization.

25493423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

The square root of 25493423 is about 5049.1012071457. The cubic root of 25493423 is about 294.3129582725.

The spelling of 25493423 in words is "twenty-five million, four hundred ninety-three thousand, four hundred twenty-three".