25433250432 has 128 divisors (see below), whose sum is σ = 71971200000. Its totient is φ = 7934598144.

The previous prime is 25433250347. The next prime is 25433250433. The reversal of 25433250432 is 23405233452.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 25433250393 and 25433250402.

It is not an unprimeable number, because it can be changed into a prime (25433250433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584569 + ... + 626567.

It is an arithmetic number, because the mean of its divisors is an integer number (562275000).

Almost surely, 2^25433250432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25433250432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35985600000).

25433250432 is an abundant number, since it is smaller than the sum of its proper divisors (46537949568).

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

25433250432 is a wasteful number, since it uses less digits than its factorization.

25433250432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42118 (or 42106 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 25433250432 its reverse (23405233452), we get a palindrome (48838483884).

The spelling of 25433250432 in words is "twenty-five billion, four hundred thirty-three million, two hundred fifty thousand, four hundred thirty-two".