20551075210 has 32 divisors (see below), whose sum is σ = 38269043712. Its totient is φ = 7937792640.

The previous prime is 20551075201. The next prime is 20551075213. The reversal of 20551075210 is 1257015502.

It is not an unprimeable number, because it can be changed into a prime (20551075213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69139 + ... + 214201.

It is an arithmetic number, because the mean of its divisors is an integer number (1195907616).

Almost surely, 2^20551075210 is an apocalyptic number.

20551075210 is a deficient number, since it is larger than the sum of its proper divisors (17717968502).

20551075210 is a wasteful number, since it uses less digits than its factorization.

20551075210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145558.

The product of its (nonzero) digits is 3500, while the sum is 28.

The spelling of 20551075210 in words is "twenty billion, five hundred fifty-one million, seventy-five thousand, two hundred ten".