25351923 has 4 divisors (see below), whose sum is σ = 33802568. Its totient is φ = 16901280.

The previous prime is 25351891. The next prime is 25351933. The reversal of 25351923 is 32915352.

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

It is not a de Polignac number, because 25351923 - 2⁵ = 25351891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25351933) 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, 4225318 + ... + 4225323.

It is an arithmetic number, because the mean of its divisors is an integer number (8450642).

Almost surely, 2^25351923 is an apocalyptic number.

25351923 is a deficient number, since it is larger than the sum of its proper divisors (8450645).

25351923 is an equidigital number, since it uses as much as digits as its factorization.

25351923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8450644.

The product of its digits is 8100, while the sum is 30.

The square root of 25351923 is about 5035.0693143193. The cubic root of 25351923 is about 293.7674244681.

The spelling of 25351923 in words is "twenty-five million, three hundred fifty-one thousand, nine hundred twenty-three".