25131013017 has 32 divisors (see below), whose sum is σ = 37469053440. Its totient is φ = 14850192000.

The previous prime is 25131012989. The next prime is 25131013097. The reversal of 25131013017 is 71031013152.

It is a happy number.

It is not a de Polignac number, because 25131013017 - 2⁶ = 25131012953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25131013097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2607834 + ... + 2617452.

It is an arithmetic number, because the mean of its divisors is an integer number (1170907920).

Almost surely, 2^25131013017 is an apocalyptic number.

It is an amenable number.

25131013017 is a deficient number, since it is larger than the sum of its proper divisors (12338040423).

25131013017 is a wasteful number, since it uses less digits than its factorization.

25131013017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11605.

The product of its (nonzero) digits is 630, while the sum is 24.

Adding to 25131013017 its reverse (71031013152), we get a palindrome (96162026169).

The spelling of 25131013017 in words is "twenty-five billion, one hundred thirty-one million, thirteen thousand, seventeen".