20503550110 has 8 divisors (see below), whose sum is σ = 36906390216. Its totient is φ = 8201420040.

The previous prime is 20503550087. The next prime is 20503550129. The reversal of 20503550110 is 1105530502.

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

It is a super-2 number, since 2×20503550110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025177496 + ... + 1025177515.

It is an arithmetic number, because the mean of its divisors is an integer number (4613298777).

Almost surely, 2^20503550110 is an apocalyptic number.

20503550110 is a deficient number, since it is larger than the sum of its proper divisors (16402840106).

20503550110 is a wasteful number, since it uses less digits than its factorization.

20503550110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050355018.

The product of its (nonzero) digits is 750, while the sum is 22.

The spelling of 20503550110 in words is "twenty billion, five hundred three million, five hundred fifty thousand, one hundred ten".