20133352252 has 48 divisors (see below), whose sum is σ = 38898472032. Its totient is φ = 9058821120.

The previous prime is 20133352231. The next prime is 20133352271. The reversal of 20133352252 is 25225333102.

It is a happy number.

It is a super-2 number, since 2×20133352252² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20133352252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3734703 + ... + 3740089.

It is an arithmetic number, because the mean of its divisors is an integer number (810384834).

Almost surely, 2^20133352252 is an apocalyptic number.

It is an amenable number.

20133352252 is a deficient number, since it is larger than the sum of its proper divisors (18765119780).

20133352252 is a wasteful number, since it uses less digits than its factorization.

20133352252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7198 (or 7196 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 20133352252 its reverse (25225333102), we get a palindrome (45358685354).

The spelling of 20133352252 in words is "twenty billion, one hundred thirty-three million, three hundred fifty-two thousand, two hundred fifty-two".