25199423 has 4 divisors (see below), whose sum is σ = 26681760. Its totient is φ = 23717088.

The previous prime is 25199417. The next prime is 25199429. The reversal of 25199423 is 32499152.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (25199417) and next prime (25199429).

It is a cyclic number.

It is not a de Polignac number, because 25199423 - 2⁴ = 25199407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25199429) 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 in 3 ways as a sum of consecutive naturals, for example, 741143 + ... + 741176.

It is an arithmetic number, because the mean of its divisors is an integer number (6670440).

Almost surely, 2^25199423 is an apocalyptic number.

25199423 is a deficient number, since it is larger than the sum of its proper divisors (1482337).

25199423 is a wasteful number, since it uses less digits than its factorization.

25199423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482336.

The product of its digits is 19440, while the sum is 35.

The square root of 25199423 is about 5019.9026882998. The cubic root of 25199423 is about 293.1772041324.

The spelling of 25199423 in words is "twenty-five million, one hundred ninety-nine thousand, four hundred twenty-three".