32443220525 has 24 divisors (see below), whose sum is σ = 41088099360. Its totient is φ = 25406447040.

The previous prime is 32443220521. The next prime is 32443220533. The reversal of 32443220525 is 52502234423.

It is not a de Polignac number, because 32443220525 - 2² = 32443220521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32443220491 and 32443220500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32443220521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154454 + ... + 297896.

It is an arithmetic number, because the mean of its divisors is an integer number (1712004140).

Almost surely, 2^32443220525 is an apocalyptic number.

It is an amenable number.

32443220525 is a deficient number, since it is larger than the sum of its proper divisors (8644878835).

32443220525 is a wasteful number, since it uses less digits than its factorization.

32443220525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143645 (or 143640 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 32443220525 its reverse (52502234423), we get a palindrome (84945454948).

The spelling of 32443220525 in words is "thirty-two billion, four hundred forty-three million, two hundred twenty thousand, five hundred twenty-five".