5566532557 has 4 divisors (see below), whose sum is σ = 5644934496. Its totient is φ = 5488130620.

The previous prime is 5566532539. The next prime is 5566532591. The reversal of 5566532557 is 7552356655.

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 5566532557 - 2¹¹ = 5566530509 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5566532557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5566532527) 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, 39200863 + ... + 39201004.

It is an arithmetic number, because the mean of its divisors is an integer number (1411233624).

Almost surely, 2^5566532557 is an apocalyptic number.

It is an amenable number.

5566532557 is a deficient number, since it is larger than the sum of its proper divisors (78401939).

5566532557 is an equidigital number, since it uses as much as digits as its factorization.

5566532557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78401938.

The product of its digits is 4725000, while the sum is 49.

The square root of 5566532557 is about 74609.1988765460. The cubic root of 5566532557 is about 1772.2633283440.

The spelling of 5566532557 in words is "five billion, five hundred sixty-six million, five hundred thirty-two thousand, five hundred fifty-seven".