5056560661 has 4 divisors (see below), whose sum is σ = 5068924300. Its totient is φ = 5044197024.

The previous prime is 5056560623. The next prime is 5056560673. The reversal of 5056560661 is 1660656505.

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 4774119025 + 282441636 = 69095^2 + 16806^2 .

It is a cyclic number.

It is not a de Polignac number, because 5056560661 - 2¹³ = 5056552469 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 (5056560161) 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, 6181206 + ... + 6182023.

It is an arithmetic number, because the mean of its divisors is an integer number (1267231075).

Almost surely, 2^5056560661 is an apocalyptic number.

It is an amenable number.

5056560661 is a deficient number, since it is larger than the sum of its proper divisors (12363639).

5056560661 is a wasteful number, since it uses less digits than its factorization.

5056560661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12363638.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 5056560661 is about 71109.4976849084. The cubic root of 5056560661 is about 1716.3996101029.

The spelling of 5056560661 in words is "five billion, fifty-six million, five hundred sixty thousand, six hundred sixty-one".