52161633 has 12 divisors (see below), whose sum is σ = 77943060. Its totient is φ = 33575136.

The previous prime is 52161617. The next prime is 52161647. The reversal of 52161633 is 33616125.

52161633 is a `hidden beast` number, since 5 + 21 + 6 + 1 + 633 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38787984 + 13373649 = 6228^2 + 3657^2 .

It is not a de Polignac number, because 52161633 - 2⁴ = 52161617 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52161597 and 52161606.

It is not an unprimeable number, because it can be changed into a prime (52161673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99666 + ... + 100187.

It is an arithmetic number, because the mean of its divisors is an integer number (6495255).

Almost surely, 2^52161633 is an apocalyptic number.

It is an amenable number.

52161633 is a deficient number, since it is larger than the sum of its proper divisors (25781427).

52161633 is a wasteful number, since it uses less digits than its factorization.

52161633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199888 (or 199885 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 52161633 is about 7222.3010876036. The cubic root of 52161633 is about 373.6374445097.

Adding to 52161633 its reverse (33616125), we get a palindrome (85777758).

The spelling of 52161633 in words is "fifty-two million, one hundred sixty-one thousand, six hundred thirty-three".