20151055050 has 96 divisors (see below), whose sum is σ = 57896449152. Its totient is φ = 4542842880.

The previous prime is 20151055039. The next prime is 20151055063. The reversal of 20151055050 is 5055015102.

It is a self number, because there is not a number n which added to its sum of digits gives 20151055050.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54799 + ... + 208098.

It is an arithmetic number, because the mean of its divisors is an integer number (603088012).

Almost surely, 2^20151055050 is an apocalyptic number.

20151055050 is an abundant number, since it is smaller than the sum of its proper divisors (37745394102).

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

20151055050 is a wasteful number, since it uses less digits than its factorization.

20151055050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262992 (or 262987 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The spelling of 20151055050 in words is "twenty billion, one hundred fifty-one million, fifty-five thousand, fifty".