52161844 has 12 divisors (see below), whose sum is σ = 104323744. Its totient is φ = 22355064.

The previous prime is 52161833. The next prime is 52161877. The reversal of 52161844 is 44816125.

52161844 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931434 + ... + 931489.

Almost surely, 2^52161844 is an apocalyptic number.

It is an amenable number.

52161844 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52161844 is a wasteful number, since it uses less digits than its factorization.

52161844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862934 (or 1862932 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 52161844 is about 7222.3156951216. The cubic root of 52161844 is about 373.6379483116.

Adding to 52161844 its reverse (44816125), we get a palindrome (96977969).

The spelling of 52161844 in words is "fifty-two million, one hundred sixty-one thousand, eight hundred forty-four".