25451320022232 has 96 divisors (see below), whose sum is σ = 72790640034000. Its totient is φ = 7370517989376.

The previous prime is 25451320022171. The next prime is 25451320022279. The reversal of 25451320022232 is 23222002315452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25451320022193 and 25451320022202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141042607 + ... + 141222942.

Almost surely, 2^{25451320022232} is an apocalyptic number.

It is an amenable number.

25451320022232 is an abundant number, since it is smaller than the sum of its proper divisors (47339320011768).

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

25451320022232 is a wasteful number, since it uses less digits than its factorization.

25451320022232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282265605 (or 282265584 counting only the distinct ones).

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

Adding to 25451320022232 its reverse (23222002315452), we get a palindrome (48673322337684).

The spelling of 25451320022232 in words is "twenty-five trillion, four hundred fifty-one billion, three hundred twenty million, twenty-two thousand, two hundred thirty-two".