5168561 has 4 divisors (see below), whose sum is σ = 5472612. Its totient is φ = 4864512.

The previous prime is 5168539. The next prime is 5168573. The reversal of 5168561 is 1658615.

It is a happy number.

5168561 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 1577536 + 3591025 = 1256^2 + 1895^2 .

It is a cyclic number.

It is not a de Polignac number, because 5168561 - 2¹⁴ = 5152177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5168861) 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, 152000 + ... + 152033.

It is an arithmetic number, because the mean of its divisors is an integer number (1368153).

Almost surely, 2^5168561 is an apocalyptic number.

It is an amenable number.

5168561 is a deficient number, since it is larger than the sum of its proper divisors (304051).

5168561 is a wasteful number, since it uses less digits than its factorization.

5168561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304050.

The product of its digits is 7200, while the sum is 32.

The square root of 5168561 is about 2273.4469424203. The cubic root of 5168561 is about 172.8979651586.

The spelling of 5168561 in words is "five million, one hundred sixty-eight thousand, five hundred sixty-one".