52551181 has 4 divisors (see below), whose sum is σ = 52782912. Its totient is φ = 52319452.

The previous prime is 52551179. The next prime is 52551223. The reversal of 52551181 is 18115525.

52551181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 52551181 - 2¹ = 52551179 is a prime.

It is a super-2 number, since 2×52551181² = 5523253248989522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52551151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115525 + ... + 115978.

It is an arithmetic number, because the mean of its divisors is an integer number (13195728).

Almost surely, 2^52551181 is an apocalyptic number.

It is an amenable number.

52551181 is a deficient number, since it is larger than the sum of its proper divisors (231731).

52551181 is a wasteful number, since it uses less digits than its factorization.

52551181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231730.

The product of its digits is 2000, while the sum is 28.

The square root of 52551181 is about 7249.2193372804. The cubic root of 52551181 is about 374.5652585648.

The spelling of 52551181 in words is "fifty-two million, five hundred fifty-one thousand, one hundred eighty-one".