561051050563 has 4 divisors (see below), whose sum is σ = 561212880120. Its totient is φ = 560889221008.

The previous prime is 561051050561. The next prime is 561051050611. The reversal of 561051050563 is 365050150165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561051050563 - 2¹ = 561051050561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561051050561) by changing a digit.

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, 80909578 + ... + 80916511.

It is an arithmetic number, because the mean of its divisors is an integer number (140303220030).

Almost surely, 2^561051050563 is an apocalyptic number.

561051050563 is a deficient number, since it is larger than the sum of its proper divisors (161829557).

561051050563 is a wasteful number, since it uses less digits than its factorization.

561051050563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161829556.

The product of its (nonzero) digits is 67500, while the sum is 37.

The spelling of 561051050563 in words is "five hundred sixty-one billion, fifty-one million, fifty thousand, five hundred sixty-three".