25430223 has 16 divisors (see below), whose sum is σ = 41732096. Its totient is φ = 13413600.

The previous prime is 25430213. The next prime is 25430233. The reversal of 25430223 is 32203452.

It is an interprime number because it is at equal distance from previous prime (25430213) and next prime (25430233).

It is not a de Polignac number, because 25430223 - 2⁵ = 25430191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 25430223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25430213) 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, 46303 + ... + 46848.

It is an arithmetic number, because the mean of its divisors is an integer number (2608256).

Almost surely, 2^25430223 is an apocalyptic number.

25430223 is a deficient number, since it is larger than the sum of its proper divisors (16301873).

25430223 is a wasteful number, since it uses less digits than its factorization.

25430223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93174.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 25430223 is about 5042.8387838597. The cubic root of 25430223 is about 294.0695494675.

Adding to 25430223 its reverse (32203452), we get a palindrome (57633675).

The spelling of 25430223 in words is "twenty-five million, four hundred thirty thousand, two hundred twenty-three".