25225838013 has 4 divisors (see below), whose sum is σ = 33634450688. Its totient is φ = 16817225340.

The previous prime is 25225837999. The next prime is 25225838083. The reversal of 25225838013 is 31083852252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25225838013 - 2¹² = 25225833917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225838083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4204306333 + ... + 4204306338.

It is an arithmetic number, because the mean of its divisors is an integer number (8408612672).

Almost surely, 2^25225838013 is an apocalyptic number.

It is an amenable number.

25225838013 is a deficient number, since it is larger than the sum of its proper divisors (8408612675).

25225838013 is an equidigital number, since it uses as much as digits as its factorization.

25225838013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8408612674.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 25225838013 in words is "twenty-five billion, two hundred twenty-five million, eight hundred thirty-eight thousand, thirteen".