20403322252 has 12 divisors (see below), whose sum is σ = 35837571616. Its totient is φ = 10164016080.

The previous prime is 20403322237. The next prime is 20403322309. The reversal of 20403322252 is 25222330402.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9410043 + ... + 9412210.

Almost surely, 2^20403322252 is an apocalyptic number.

It is an amenable number.

20403322252 is a deficient number, since it is larger than the sum of its proper divisors (15434249364).

20403322252 is a wasteful number, since it uses less digits than its factorization.

20403322252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18822528 (or 18822526 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20403322252 its reverse (25222330402), we get a palindrome (45625652654).

The spelling of 20403322252 in words is "twenty billion, four hundred three million, three hundred twenty-two thousand, two hundred fifty-two".