20525321020233 has 16 divisors (see below), whose sum is σ = 27676572359040. Its totient is φ = 13528830539136.

The previous prime is 20525321020213. The next prime is 20525321020249. The reversal of 20525321020233 is 33202012352502.

It is a de Polignac number, because none of the positive numbers 2^k-20525321020233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20525321020233.

It is not an unprimeable number, because it can be changed into a prime (20525321020213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991116 + ... + 6483282.

It is an arithmetic number, because the mean of its divisors is an integer number (1729785772440).

Almost surely, 2^{20525321020233} is an apocalyptic number.

It is an amenable number.

20525321020233 is a deficient number, since it is larger than the sum of its proper divisors (7151251338807).

20525321020233 is a wasteful number, since it uses less digits than its factorization.

20525321020233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506256.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 20525321020233 its reverse (33202012352502), we get a palindrome (53727333372735).

The spelling of 20525321020233 in words is "twenty trillion, five hundred twenty-five billion, three hundred twenty-one million, twenty thousand, two hundred thirty-three".