25143254232 has 32 divisors (see below), whose sum is σ = 64195545600. Its totient is φ = 8202763424.

The previous prime is 25143254221. The next prime is 25143254233. The reversal of 25143254232 is 23245234152.

It is a junction number, because it is equal to n+sod(n) for n = 25143254193 and 25143254202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25143254233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11143932 + ... + 11146187.

It is an arithmetic number, because the mean of its divisors is an integer number (2006110800).

Almost surely, 2^25143254232 is an apocalyptic number.

It is an amenable number.

25143254232 is an abundant number, since it is smaller than the sum of its proper divisors (39052291368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25143254232 is a wasteful number, since it uses less digits than its factorization.

25143254232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22290175 (or 22290171 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

Adding to 25143254232 its reverse (23245234152), we get a palindrome (48388488384).

The spelling of 25143254232 in words is "twenty-five billion, one hundred forty-three million, two hundred fifty-four thousand, two hundred thirty-two".