25123430265 has 32 divisors (see below), whose sum is σ = 41955584256. Its totient is φ = 12813419520.

The previous prime is 25123430239. The next prime is 25123430281. The reversal of 25123430265 is 56203432152.

It is a happy number.

It is not a de Polignac number, because 25123430265 - 2⁶ = 25123430201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2105797 + ... + 2117693.

It is an arithmetic number, because the mean of its divisors is an integer number (1311112008).

Almost surely, 2^25123430265 is an apocalyptic number.

It is an amenable number.

25123430265 is a deficient number, since it is larger than the sum of its proper divisors (16832153991).

25123430265 is a wasteful number, since it uses less digits than its factorization.

25123430265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18049.

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 25123430265 in words is "twenty-five billion, one hundred twenty-three million, four hundred thirty thousand, two hundred sixty-five".