25013210432 has 56 divisors (see below), whose sum is σ = 56942345856. Its totient is φ = 10679136768.

The previous prime is 25013210377. The next prime is 25013210441. The reversal of 25013210432 is 23401231052.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×25013210432² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25013210398 and 25013210407.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11678 + ... + 223970.

Almost surely, 2^25013210432 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 25013210432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28471172928).

25013210432 is an abundant number, since it is smaller than the sum of its proper divisors (31929135424).

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

25013210432 is a wasteful number, since it uses less digits than its factorization.

25013210432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212575 (or 212565 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 25013210432 its reverse (23401231052), we get a palindrome (48414441484).

The spelling of 25013210432 in words is "twenty-five billion, thirteen million, two hundred ten thousand, four hundred thirty-two".