25344442513445 has 16 divisors (see below), whose sum is σ = 33550967828160. Its totient is φ = 18225217084800.

The previous prime is 25344442513417. The next prime is 25344442513447. The reversal of 25344442513445 is 54431524444352.

It is not a de Polignac number, because 25344442513445 - 2¹² = 25344442509349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25344442513393 and 25344442513402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25344442513447) 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, 2588804351 + ... + 2588814140.

It is an arithmetic number, because the mean of its divisors is an integer number (2096935489260).

Almost surely, 2^{25344442513445} is an apocalyptic number.

It is an amenable number.

25344442513445 is a deficient number, since it is larger than the sum of its proper divisors (8206525314715).

25344442513445 is a wasteful number, since it uses less digits than its factorization.

25344442513445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177618596.

The product of its digits is 18432000, while the sum is 50.

Adding to 25344442513445 its reverse (54431524444352), we get a palindrome (79775966957797).

The spelling of 25344442513445 in words is "twenty-five trillion, three hundred forty-four billion, four hundred forty-two million, five hundred thirteen thousand, four hundred forty-five".