50565151220 has 24 divisors (see below), whose sum is σ = 112433101704. Its totient is φ = 19036292096.

The previous prime is 50565151171. The next prime is 50565151253. The reversal of 50565151220 is 2215156505.

It can be written as a sum of positive squares in 4 ways, for example, as 9756303076 + 40808848144 = 98774^2 + 202012^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74360177 + ... + 74360856.

It is an arithmetic number, because the mean of its divisors is an integer number (4684712571).

Almost surely, 2^50565151220 is an apocalyptic number.

It is an amenable number.

50565151220 is an abundant number, since it is smaller than the sum of its proper divisors (61867950484).

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

50565151220 is a wasteful number, since it uses less digits than its factorization.

50565151220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148721059 (or 148721057 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 50565151220 in words is "fifty billion, five hundred sixty-five million, one hundred fifty-one thousand, two hundred twenty".