20533233252 has 24 divisors (see below), whose sum is σ = 54755288896. Its totient is φ = 5866638048.

The previous prime is 20533233229. The next prime is 20533233263. The reversal of 20533233252 is 25233233502.

It is a super-2 number, since 2×20533233252² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122221543 + ... + 122221710.

Almost surely, 2^20533233252 is an apocalyptic number.

It is an amenable number.

20533233252 is an abundant number, since it is smaller than the sum of its proper divisors (34222055644).

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

20533233252 is a wasteful number, since it uses less digits than its factorization.

20533233252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244443267 (or 244443265 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 20533233252 its reverse (25233233502), we get a palindrome (45766466754).

The spelling of 20533233252 in words is "twenty billion, five hundred thirty-three million, two hundred thirty-three thousand, two hundred fifty-two".