561054213305 has 8 divisors (see below), whose sum is σ = 689686155144. Its totient is φ = 437895971200.

The previous prime is 561054213271. The next prime is 561054213389. The reversal of 561054213305 is 503312450165.

561054213305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 41229241 + 561012984064 = 6421^2 + 749008^2 .

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

It is not a de Polignac number, because 561054213305 - 2³⁰ = 559980471481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1368424706 + ... + 1368425115.

It is an arithmetic number, because the mean of its divisors is an integer number (86210769393).

Almost surely, 2^561054213305 is an apocalyptic number.

It is an amenable number.

561054213305 is a deficient number, since it is larger than the sum of its proper divisors (128631941839).

561054213305 is a wasteful number, since it uses less digits than its factorization.

561054213305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736849867.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 561054213305 in words is "five hundred sixty-one billion, fifty-four million, two hundred thirteen thousand, three hundred five".