20535520033 has 16 divisors (see below), whose sum is σ = 23826797440. Its totient is φ = 17333813376.

The previous prime is 20535520001. The next prime is 20535520037. The reversal of 20535520033 is 33002553502.

It is a cyclic number.

It is not a de Polignac number, because 20535520033 - 2⁵ = 20535520001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20535519983 and 20535520010.

It is not an unprimeable number, because it can be changed into a prime (20535520037) 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, 2534653 + ... + 2542741.

It is an arithmetic number, because the mean of its divisors is an integer number (1489174840).

Almost surely, 2^20535520033 is an apocalyptic number.

It is an amenable number.

20535520033 is a deficient number, since it is larger than the sum of its proper divisors (3291277407).

20535520033 is an equidigital number, since it uses as much as digits as its factorization.

20535520033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13576.

The product of its (nonzero) digits is 13500, while the sum is 28.

The spelling of 20535520033 in words is "twenty billion, five hundred thirty-five million, five hundred twenty thousand, thirty-three".