20530084850 has 48 divisors (see below), whose sum is σ = 44107864416. Its totient is φ = 7026336000.

The previous prime is 20530084843. The next prime is 20530084891. The reversal of 20530084850 is 5848003502.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20530084850.

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 23 ways as a sum of consecutive naturals, for example, 1088516 + ... + 1107215.

It is an arithmetic number, because the mean of its divisors is an integer number (918913842).

Almost surely, 2^20530084850 is an apocalyptic number.

20530084850 is an abundant number, since it is smaller than the sum of its proper divisors (23577779566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20530084850 is a wasteful number, since it uses less digits than its factorization.

20530084850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195771 (or 2195766 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 20530084850 in words is "twenty billion, five hundred thirty million, eighty-four thousand, eight hundred fifty".