561005000005 has 8 divisors (see below), whose sum is σ = 673220224152. Its totient is φ = 448794517248.

The previous prime is 561004999999. The next prime is 561005000009. The reversal of 561005000005 is 500000500165.

It can be written as a sum of positive squares in 4 ways, for example, as 16842069729 + 544162930276 = 129777^2 + 737674^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561005000005 is a prime.

It is a super-2 number, since 2×561005000005² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 561005000005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561005000009) 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 7 ways as a sum of consecutive naturals, for example, 919624 + ... + 1402753.

It is an arithmetic number, because the mean of its divisors is an integer number (84152528019).

Almost surely, 2^561005000005 is an apocalyptic number.

It is an amenable number.

561005000005 is a deficient number, since it is larger than the sum of its proper divisors (112215224147).

561005000005 is a wasteful number, since it uses less digits than its factorization.

561005000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370695.

The product of its (nonzero) digits is 750, while the sum is 22.

The spelling of 561005000005 in words is "five hundred sixty-one billion, five million, five", and thus it is an aban number.