25440113111 has 16 divisors (see below), whose sum is σ = 29198154240. Its totient is φ = 21713196960.

The previous prime is 25440113093. The next prime is 25440113117. The reversal of 25440113111 is 11131104452.

It is a de Polignac number, because none of the positive numbers 2^k-25440113111 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 (25440113117) 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, 1709081 + ... + 1723901.

It is an arithmetic number, because the mean of its divisors is an integer number (1824884640).

Almost surely, 2^25440113111 is an apocalyptic number.

25440113111 is a deficient number, since it is larger than the sum of its proper divisors (3758041129).

25440113111 is a wasteful number, since it uses less digits than its factorization.

25440113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15854.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 25440113111 its reverse (11131104452), we get a palindrome (36571217563).

The spelling of 25440113111 in words is "twenty-five billion, four hundred forty million, one hundred thirteen thousand, one hundred eleven".