5525564161 has 4 divisors (see below), whose sum is σ = 5950607572. Its totient is φ = 5100520752.

The previous prime is 5525564117. The next prime is 5525564189. The reversal of 5525564161 is 1614655255.

5525564161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1423930225 + 4101633936 = 37735^2 + 64044^2 .

It is a cyclic number.

It is not a de Polignac number, because 5525564161 - 2¹⁵ = 5525531393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5525564101) 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, 212521686 + ... + 212521711.

It is an arithmetic number, because the mean of its divisors is an integer number (1487651893).

Almost surely, 2^5525564161 is an apocalyptic number.

It is an amenable number.

5525564161 is a deficient number, since it is larger than the sum of its proper divisors (425043411).

5525564161 is a wasteful number, since it uses less digits than its factorization.

5525564161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425043410.

The product of its digits is 180000, while the sum is 40.

The square root of 5525564161 is about 74334.1385972825. The cubic root of 5525564161 is about 1767.9048017347.

The spelling of 5525564161 in words is "five billion, five hundred twenty-five million, five hundred sixty-four thousand, one hundred sixty-one".