561050120 has 32 divisors (see below), whose sum is σ = 1277579520. Its totient is φ = 221714880.

The previous prime is 561050093. The next prime is 561050159. The reversal of 561050120 is 21050165.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 561050092 and 561050101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81176 + ... + 87815.

It is an arithmetic number, because the mean of its divisors is an integer number (39924360).

Almost surely, 2^561050120 is an apocalyptic number.

It is an amenable number.

561050120 is an abundant number, since it is smaller than the sum of its proper divisors (716529400).

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

561050120 is a wasteful number, since it uses less digits than its factorization.

561050120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169085 (or 169081 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 561050120 is about 23686.4965750531. The cubic root of 561050120 is about 824.7719577858.

The spelling of 561050120 in words is "five hundred sixty-one million, fifty thousand, one hundred twenty".