52181121 has 8 divisors (see below), whose sum is σ = 71974080. Its totient is φ = 33587792.

The previous prime is 52181119. The next prime is 52181123. The reversal of 52181121 is 12118125.

It is an interprime number because it is at equal distance from previous prime (52181119) and next prime (52181123).

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

It is a cyclic number.

It is not a de Polignac number, because 52181121 - 2¹ = 52181119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52181123) 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, 299805 + ... + 299978.

It is an arithmetic number, because the mean of its divisors is an integer number (8996760).

Almost surely, 2^52181121 is an apocalyptic number.

It is an amenable number.

52181121 is a deficient number, since it is larger than the sum of its proper divisors (19792959).

52181121 is a wasteful number, since it uses less digits than its factorization.

52181121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599815.

The product of its digits is 160, while the sum is 21.

The square root of 52181121 is about 7223.6501161117. The cubic root of 52181121 is about 373.6839700208.

Adding to 52181121 its reverse (12118125), we get a palindrome (64299246).

The spelling of 52181121 in words is "fifty-two million, one hundred eighty-one thousand, one hundred twenty-one".