20210522533 has 8 divisors (see below), whose sum is σ = 21157059456. Its totient is φ = 19269637200.

The previous prime is 20210522491. The next prime is 20210522557. The reversal of 20210522533 is 33522501202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20210522533 - 2²⁵ = 20176968101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210522498 and 20210522507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210522333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405578 + ... + 1419883.

It is an arithmetic number, because the mean of its divisors is an integer number (2644632432).

Almost surely, 2^20210522533 is an apocalyptic number.

20210522533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20210522533 is a deficient number, since it is larger than the sum of its proper divisors (946536923).

20210522533 is a wasteful number, since it uses less digits than its factorization.

20210522533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825795.

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 20210522533 in words is "twenty billion, two hundred ten million, five hundred twenty-two thousand, five hundred thirty-three".