20522504200 has 96 divisors (see below), whose sum is σ = 54792252000. Its totient is φ = 7069939200.

The previous prime is 20522504173. The next prime is 20522504201. The reversal of 20522504200 is 240522502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (20522504201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203685 + ... + 287284.

It is an arithmetic number, because the mean of its divisors is an integer number (570752625).

Almost surely, 2^20522504200 is an apocalyptic number.

20522504200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20522504200 is an abundant number, since it is smaller than the sum of its proper divisors (34269747800).

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

20522504200 is a wasteful number, since it uses less digits than its factorization.

20522504200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491015 (or 491006 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The spelling of 20522504200 in words is "twenty billion, five hundred twenty-two million, five hundred four thousand, two hundred".