52206161 has 8 divisors (see below), whose sum is σ = 61119744. Its totient is φ = 43656480.

The previous prime is 52206157. The next prime is 52206163. The reversal of 52206161 is 16160225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52206161 - 2² = 52206157 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52206163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90665 + ... + 91238.

It is an arithmetic number, because the mean of its divisors is an integer number (7639968).

Almost surely, 2^52206161 is an apocalyptic number.

It is an amenable number.

52206161 is a deficient number, since it is larger than the sum of its proper divisors (8913583).

52206161 is a wasteful number, since it uses less digits than its factorization.

52206161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181951.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 52206161 is about 7225.3831040298. The cubic root of 52206161 is about 373.7437333356.

Adding to 52206161 its reverse (16160225), we get a palindrome (68366386).

The spelling of 52206161 in words is "fifty-two million, two hundred six thousand, one hundred sixty-one".