20530530535 has 8 divisors (see below), whose sum is σ = 24664733856. Its totient is φ = 16405692960.

The previous prime is 20530530533. The next prime is 20530530547. The reversal of 20530530535 is 53503503502.

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

It is not a de Polignac number, because 20530530535 - 2¹ = 20530530533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20530530497 and 20530530506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530530533) 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, 2336611 + ... + 2345380.

It is an arithmetic number, because the mean of its divisors is an integer number (3083091732).

Almost surely, 2^20530530535 is an apocalyptic number.

20530530535 is a deficient number, since it is larger than the sum of its proper divisors (4134203321).

20530530535 is an equidigital number, since it uses as much as digits as its factorization.

20530530535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4682873.

The product of its (nonzero) digits is 33750, while the sum is 31.

The spelling of 20530530535 in words is "twenty billion, five hundred thirty million, five hundred thirty thousand, five hundred thirty-five".