5661056653 has 4 divisors (see below), whose sum is σ = 6469779040. Its totient is φ = 4852334268.

The previous prime is 5661056651. The next prime is 5661056699. The reversal of 5661056653 is 3566501665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5661056653 - 2¹ = 5661056651 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 (5661056651) 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, 404361183 + ... + 404361196.

It is an arithmetic number, because the mean of its divisors is an integer number (1617444760).

Almost surely, 2^5661056653 is an apocalyptic number.

It is an amenable number.

5661056653 is a deficient number, since it is larger than the sum of its proper divisors (808722387).

5661056653 is an equidigital number, since it uses as much as digits as its factorization.

5661056653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808722386.

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 5661056653 is about 75239.9937068046. The cubic root of 5661056653 is about 1782.2385517857.

The spelling of 5661056653 in words is "five billion, six hundred sixty-one million, fifty-six thousand, six hundred fifty-three".