20530522135 has 8 divisors (see below), whose sum is σ = 24640908336. Its totient is φ = 16421563200.

The previous prime is 20530522127. The next prime is 20530522171. The reversal of 20530522135 is 53122503502.

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

It is not a de Polignac number, because 20530522135 - 2³ = 20530522127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 324909 + ... + 382918.

It is an arithmetic number, because the mean of its divisors is an integer number (3080113542).

Almost surely, 2^20530522135 is an apocalyptic number.

20530522135 is a deficient number, since it is larger than the sum of its proper divisors (4110386201).

20530522135 is an equidigital number, since it uses as much as digits as its factorization.

20530522135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713633.

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 20530522135 in words is "twenty billion, five hundred thirty million, five hundred twenty-two thousand, one hundred thirty-five".