25831223 has 4 divisors (see below), whose sum is σ = 28179528. Its totient is φ = 23482920.

The previous prime is 25831181. The next prime is 25831229. The reversal of 25831223 is 32213852.

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

It is a cyclic number.

It is not a de Polignac number, because 25831223 - 2⁶ = 25831159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25831192 and 25831201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25831229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174136 + ... + 1174157.

It is an arithmetic number, because the mean of its divisors is an integer number (7044882).

Almost surely, 2^25831223 is an apocalyptic number.

25831223 is a deficient number, since it is larger than the sum of its proper divisors (2348305).

25831223 is a wasteful number, since it uses less digits than its factorization.

25831223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348304.

The product of its digits is 2880, while the sum is 26.

The square root of 25831223 is about 5082.4426214174. The cubic root of 25831223 is about 295.6071875791.

The spelling of 25831223 in words is "twenty-five million, eight hundred thirty-one thousand, two hundred twenty-three".