25131013016 has 16 divisors (see below), whose sum is σ = 48394181040. Its totient is φ = 12225898080.

The previous prime is 25131012989. The next prime is 25131013097. The reversal of 25131013016 is 61031013152.

It is a super-2 number, since 2×25131013016² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25131012982 and 25131013000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42450740 + ... + 42451331.

It is an arithmetic number, because the mean of its divisors is an integer number (3024636315).

Almost surely, 2^25131013016 is an apocalyptic number.

It is an amenable number.

25131013016 is a deficient number, since it is larger than the sum of its proper divisors (23263168024).

25131013016 is a wasteful number, since it uses less digits than its factorization.

25131013016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84902114 (or 84902110 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 25131013016 its reverse (61031013152), we get a palindrome (86162026168).

The spelling of 25131013016 in words is "twenty-five billion, one hundred thirty-one million, thirteen thousand, sixteen".