25151231032 has 16 divisors (see below), whose sum is σ = 49208930640. Its totient is φ = 12028849536.

The previous prime is 25151230997. The next prime is 25151231033. The reversal of 25151231032 is 23013215152.

It is a junction number, because it is equal to n+sod(n) for n = 25151230988 and 25151231006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25151231033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68345553 + ... + 68345920.

It is an arithmetic number, because the mean of its divisors is an integer number (3075558165).

Almost surely, 2^25151231032 is an apocalyptic number.

It is an amenable number.

25151231032 is a deficient number, since it is larger than the sum of its proper divisors (24057699608).

25151231032 is a wasteful number, since it uses less digits than its factorization.

25151231032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136691502 (or 136691498 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 25151231032 its reverse (23013215152), we get a palindrome (48164446184).

The spelling of 25151231032 in words is "twenty-five billion, one hundred fifty-one million, two hundred thirty-one thousand, thirty-two".