56002761061 has 4 divisors (see below), whose sum is σ = 60310665772. Its totient is φ = 51694856352.

The previous prime is 56002761007. The next prime is 56002761077. The reversal of 56002761061 is 16016720065.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2696724900 + 53306036161 = 51930^2 + 230881^2 .

It is a cyclic number.

It is not a de Polignac number, because 56002761061 - 2³⁵ = 21643022693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56002761161) 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, 2153952336 + ... + 2153952361.

It is an arithmetic number, because the mean of its divisors is an integer number (15077666443).

Almost surely, 2^56002761061 is an apocalyptic number.

It is an amenable number.

56002761061 is a deficient number, since it is larger than the sum of its proper divisors (4307904711).

56002761061 is a wasteful number, since it uses less digits than its factorization.

56002761061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307904710.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 56002761061 in words is "fifty-six billion, two million, seven hundred sixty-one thousand, sixty-one".