52652181 has 4 divisors (see below), whose sum is σ = 70202912. Its totient is φ = 35101452.

The previous prime is 52652153. The next prime is 52652189. The reversal of 52652181 is 18125625.

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 not a de Polignac number, because 52652181 - 2¹⁹ = 52127893 is a prime.

It is a super-3 number, since 3×52652181³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52652189) 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, 8775361 + ... + 8775366.

It is an arithmetic number, because the mean of its divisors is an integer number (17550728).

Almost surely, 2^52652181 is an apocalyptic number.

It is an amenable number.

52652181 is a deficient number, since it is larger than the sum of its proper divisors (17550731).

52652181 is a wasteful number, since it uses less digits than its factorization.

52652181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17550730.

The product of its digits is 4800, while the sum is 30.

The square root of 52652181 is about 7256.1822606657. The cubic root of 52652181 is about 374.8050684665.

The spelling of 52652181 in words is "fifty-two million, six hundred fifty-two thousand, one hundred eighty-one".