20503552210 has 16 divisors (see below), whose sum is σ = 38096923392. Its totient is φ = 7936858800.

The previous prime is 20503552159. The next prime is 20503552243. The reversal of 20503552210 is 1225530502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33069936 + ... + 33070555.

It is an arithmetic number, because the mean of its divisors is an integer number (2381057712).

Almost surely, 2^20503552210 is an apocalyptic number.

20503552210 is a deficient number, since it is larger than the sum of its proper divisors (17593371182).

20503552210 is a wasteful number, since it uses less digits than its factorization.

20503552210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66140529.

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 20503552210 in words is "twenty billion, five hundred three million, five hundred fifty-two thousand, two hundred ten".