25424441113 has 4 divisors (see below), whose sum is σ = 25426168848. Its totient is φ = 25422713380.

The previous prime is 25424441099. The next prime is 25424441123. The reversal of 25424441113 is 31114442452.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 25424441113 - 2²⁵ = 25390886681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25424441123) 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, 841603 + ... + 871288.

It is an arithmetic number, because the mean of its divisors is an integer number (6356542212).

Almost surely, 2^25424441113 is an apocalyptic number.

It is an amenable number.

25424441113 is a deficient number, since it is larger than the sum of its proper divisors (1727735).

25424441113 is a wasteful number, since it uses less digits than its factorization.

25424441113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727734.

The product of its digits is 15360, while the sum is 31.

Adding to 25424441113 its reverse (31114442452), we get a palindrome (56538883565).

The spelling of 25424441113 in words is "twenty-five billion, four hundred twenty-four million, four hundred forty-one thousand, one hundred thirteen".