20530532433 has 32 divisors (see below), whose sum is σ = 28170473472. Its totient is φ = 13293705600.

The previous prime is 20530532417. The next prime is 20530532453. The reversal of 20530532433 is 33423503502.

It is not a de Polignac number, because 20530532433 - 2⁴ = 20530532417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20530532433.

It is not an unprimeable number, because it can be changed into a prime (20530532453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11211828 + ... + 11213658.

It is an arithmetic number, because the mean of its divisors is an integer number (880327296).

Almost surely, 2^20530532433 is an apocalyptic number.

It is an amenable number.

20530532433 is a deficient number, since it is larger than the sum of its proper divisors (7639941039).

20530532433 is a wasteful number, since it uses less digits than its factorization.

20530532433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445.

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

The spelling of 20530532433 in words is "twenty billion, five hundred thirty million, five hundred thirty-two thousand, four hundred thirty-three".