25105430223 has 40 divisors (see below), whose sum is σ = 38222540928. Its totient is φ = 16418973456.

The previous prime is 25105430201. The next prime is 25105430249. The reversal of 25105430223 is 32203450152.

It is a happy number.

25105430223 is a `hidden beast` number, since 2 + 5 + 1 + 0 + 5 + 430 + 223 = 666.

It is not a de Polignac number, because 25105430223 - 2¹² = 25105426127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25105430263) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 878640 + ... + 906762.

Almost surely, 2^25105430223 is an apocalyptic number.

25105430223 is a deficient number, since it is larger than the sum of its proper divisors (13117110705).

25105430223 is a wasteful number, since it uses less digits than its factorization.

25105430223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28345 (or 28336 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 25105430223 its reverse (32203450152), we get a palindrome (57308880375).

The spelling of 25105430223 in words is "twenty-five billion, one hundred five million, four hundred thirty thousand, two hundred twenty-three".