20235025233 has 8 divisors (see below), whose sum is σ = 29977815200. Its totient is φ = 13490016804.

The previous prime is 20235025229. The next prime is 20235025247. The reversal of 20235025233 is 33252053202.

It is not a de Polignac number, because 20235025233 - 2² = 20235025229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 749445379 = 20235025233 / (2 + 0 + 2 + 3 + 5 + 0 + 2 + 5 + 2 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20235025197 and 20235025206.

It is not an unprimeable number, because it can be changed into a prime (20235025273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374722663 + ... + 374722716.

It is an arithmetic number, because the mean of its divisors is an integer number (3747226900).

Almost surely, 2^20235025233 is an apocalyptic number.

It is an amenable number.

20235025233 is a deficient number, since it is larger than the sum of its proper divisors (9742789967).

20235025233 is an equidigital number, since it uses as much as digits as its factorization.

20235025233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749445388 (or 749445382 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

Adding to 20235025233 its reverse (33252053202), we get a palindrome (53487078435).

The spelling of 20235025233 in words is "twenty billion, two hundred thirty-five million, twenty-five thousand, two hundred thirty-three".