561056060539 has 4 divisors (see below), whose sum is σ = 604214219056. Its totient is φ = 517897902024.

The previous prime is 561056060527. The next prime is 561056060567. The reversal of 561056060539 is 935060650165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935060650165 = 5 ⋅187012130033.

It is a cyclic number.

It is not a de Polignac number, because 561056060539 - 2³⁹ = 11300246651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561056060239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21579079239 + ... + 21579079264.

It is an arithmetic number, because the mean of its divisors is an integer number (151053554764).

Almost surely, 2^561056060539 is an apocalyptic number.

561056060539 is a deficient number, since it is larger than the sum of its proper divisors (43158158517).

561056060539 is a wasteful number, since it uses less digits than its factorization.

561056060539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43158158516.

The product of its (nonzero) digits is 729000, while the sum is 46.

The spelling of 561056060539 in words is "five hundred sixty-one billion, fifty-six million, sixty thousand, five hundred thirty-nine".