53202161 has 4 divisors (see below), whose sum is σ = 53244912. Its totient is φ = 53159412.

The previous prime is 53202157. The next prime is 53202199. The reversal of 53202161 is 16120235.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16120235 = 5 ⋅3224047.

It is a cyclic number.

It is not a de Polignac number, because 53202161 - 2² = 53202157 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 (53202101) 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, 19451 + ... + 22016.

It is an arithmetic number, because the mean of its divisors is an integer number (13311228).

Almost surely, 2^53202161 is an apocalyptic number.

It is an amenable number.

53202161 is a deficient number, since it is larger than the sum of its proper divisors (42751).

53202161 is a wasteful number, since it uses less digits than its factorization.

53202161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42750.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 53202161 is about 7293.9811488651. The cubic root of 53202161 is about 376.1055634827.

Adding to 53202161 its reverse (16120235), we get a palindrome (69322396).

The spelling of 53202161 in words is "fifty-three million, two hundred two thousand, one hundred sixty-one".