25801923 has 16 divisors (see below), whose sum is σ = 39858176. Its totient is φ = 14541120.

The previous prime is 25801921. The next prime is 25801927. The reversal of 25801923 is 32910852.

It is a happy number.

It is not a de Polignac number, because 25801923 - 2¹ = 25801921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25801921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6883 + ... + 9948.

It is an arithmetic number, because the mean of its divisors is an integer number (2491136).

Almost surely, 2^25801923 is an apocalyptic number.

25801923 is a deficient number, since it is larger than the sum of its proper divisors (14056253).

25801923 is a wasteful number, since it uses less digits than its factorization.

25801923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16914.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 25801923 is about 5079.5593312806. The cubic root of 25801923 is about 295.4953775749.

The spelling of 25801923 in words is "twenty-five million, eight hundred one thousand, nine hundred twenty-three".