561011050505 has 8 divisors (see below), whose sum is σ = 708645537600. Its totient is φ = 425187322416.

The previous prime is 561011050477. The next prime is 561011050511. The reversal of 561011050505 is 505050110165.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561011050505 - 2¹⁰ = 561011049481 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2952689645 + ... + 2952689834.

It is an arithmetic number, because the mean of its divisors is an integer number (88580692200).

Almost surely, 2^561011050505 is an apocalyptic number.

It is an amenable number.

561011050505 is a deficient number, since it is larger than the sum of its proper divisors (147634487095).

561011050505 is a wasteful number, since it uses less digits than its factorization.

561011050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905379503.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 561011050505 in words is "five hundred sixty-one billion, eleven million, fifty thousand, five hundred five".