20525321200 has 60 divisors (see below), whose sum is σ = 50147939880. Its totient is φ = 8070964480.

The previous prime is 20525321119. The next prime is 20525321227. The reversal of 20525321200 is 212352502.

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 11 ways as a sum of consecutive naturals, for example, 411259 + ... + 458458.

It is an arithmetic number, because the mean of its divisors is an integer number (835798998).

Almost surely, 2^20525321200 is an apocalyptic number.

20525321200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20525321200 is an abundant number, since it is smaller than the sum of its proper divisors (29622618680).

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

20525321200 is a wasteful number, since it uses less digits than its factorization.

20525321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869794 (or 869783 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 20525321200 its reverse (212352502), we get a palindrome (20737673702).

The spelling of 20525321200 in words is "twenty billion, five hundred twenty-five million, three hundred twenty-one thousand, two hundred".