25151234312 has 16 divisors (see below), whose sum is σ = 47260867500. Its totient is φ = 12548336320.

The previous prime is 25151234263. The next prime is 25151234351. The reversal of 25151234312 is 21343215152.

It can be written as a sum of positive squares in 2 ways, for example, as 24327888676 + 823345636 = 155974^2 + 28694^2 .

It is a super-2 number, since 2×25151234312² (a number of 22 digits) contains 22 as substring.

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, 3406187 + ... + 3413562.

Almost surely, 2^25151234312 is an apocalyptic number.

It is an amenable number.

25151234312 is a deficient number, since it is larger than the sum of its proper divisors (22109633188).

25151234312 is a wasteful number, since it uses less digits than its factorization.

25151234312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820216 (or 6820212 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

Adding to 25151234312 its reverse (21343215152), we get a palindrome (46494449464).

The spelling of 25151234312 in words is "twenty-five billion, one hundred fifty-one million, two hundred thirty-four thousand, three hundred twelve".