5566352561 has 16 divisors (see below), whose sum is σ = 7027722240. Its totient is φ = 4282508880.

The previous prime is 5566352509. The next prime is 5566352611. The reversal of 5566352561 is 1652536655.

It is a cyclic number.

It is not a de Polignac number, because 5566352561 - 2²² = 5562158257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5566352761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451451 + ... + 463616.

It is an arithmetic number, because the mean of its divisors is an integer number (439232640).

Almost surely, 2^5566352561 is an apocalyptic number.

It is an amenable number.

5566352561 is a deficient number, since it is larger than the sum of its proper divisors (1461369679).

5566352561 is a wasteful number, since it uses less digits than its factorization.

5566352561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915164.

The product of its digits is 810000, while the sum is 44.

The square root of 5566352561 is about 74607.9926080309. The cubic root of 5566352561 is about 1772.2442258629.

The spelling of 5566352561 in words is "five billion, five hundred sixty-six million, three hundred fifty-two thousand, five hundred sixty-one".