25113231145 has 16 divisors (see below), whose sum is σ = 31876912512. Its totient is φ = 18953827200.

The previous prime is 25113231131. The next prime is 25113231163. The reversal of 25113231145 is 54113231152.

It is not a de Polignac number, because 25113231145 - 2¹⁷ = 25113100073 is a prime.

It is a super-2 number, since 2×25113231145² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1487331 + ... + 1504120.

It is an arithmetic number, because the mean of its divisors is an integer number (1992307032).

Almost surely, 2^25113231145 is an apocalyptic number.

It is an amenable number.

25113231145 is a deficient number, since it is larger than the sum of its proper divisors (6763681367).

25113231145 is a wasteful number, since it uses less digits than its factorization.

25113231145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991552.

The product of its digits is 3600, while the sum is 28.

Adding to 25113231145 its reverse (54113231152), we get a palindrome (79226462297).

The spelling of 25113231145 in words is "twenty-five billion, one hundred thirteen million, two hundred thirty-one thousand, one hundred forty-five".