25145114631 has 32 divisors (see below), whose sum is σ = 41672375808. Its totient is φ = 13132022400.

The previous prime is 25145114629. The next prime is 25145114717. The reversal of 25145114631 is 13641154152.

It is not a de Polignac number, because 25145114631 - 2¹ = 25145114629 is a prime.

It is a super-2 number, since 2×25145114631² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25145114592 and 25145114601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25145114131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428401 + ... + 483546.

It is an arithmetic number, because the mean of its divisors is an integer number (1302261744).

Almost surely, 2^25145114631 is an apocalyptic number.

25145114631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25145114631 is a deficient number, since it is larger than the sum of its proper divisors (16527261177).

25145114631 is a wasteful number, since it uses less digits than its factorization.

25145114631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912071.

The product of its digits is 14400, while the sum is 33.

Adding to 25145114631 its reverse (13641154152), we get a palindrome (38786268783).

The spelling of 25145114631 in words is "twenty-five billion, one hundred forty-five million, one hundred fourteen thousand, six hundred thirty-one".