25951423 has 4 divisors (see below), whose sum is σ = 26317008. Its totient is φ = 25585840.

The previous prime is 25951411. The next prime is 25951447. The reversal of 25951423 is 32415952.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25951423 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25951223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182686 + ... + 182827.

It is an arithmetic number, because the mean of its divisors is an integer number (6579252).

Almost surely, 2^25951423 is an apocalyptic number.

25951423 is a deficient number, since it is larger than the sum of its proper divisors (365585).

25951423 is an equidigital number, since it uses as much as digits as its factorization.

25951423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365584.

The product of its digits is 10800, while the sum is 31.

The square root of 25951423 is about 5094.2539198591. The cubic root of 25951423 is about 296.0649928809.

The spelling of 25951423 in words is "twenty-five million, nine hundred fifty-one thousand, four hundred twenty-three".