52181417 has 4 divisors (see below), whose sum is σ = 52336596. Its totient is φ = 52026240.

The previous prime is 52181399. The next prime is 52181443. The reversal of 52181417 is 71418125.

52181417 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.

It can be written as a sum of positive squares in 2 ways, for example, as 9357481 + 42823936 = 3059^2 + 6544^2 .

It is a cyclic number.

It is not a de Polignac number, because 52181417 - 2¹⁰ = 52180393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52181417.

It is not an unprimeable number, because it can be changed into a prime (52181477) 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, 77084 + ... + 77757.

It is an arithmetic number, because the mean of its divisors is an integer number (13084149).

Almost surely, 2^52181417 is an apocalyptic number.

It is an amenable number.

52181417 is a deficient number, since it is larger than the sum of its proper divisors (155179).

52181417 is a wasteful number, since it uses less digits than its factorization.

52181417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155178.

The product of its digits is 2240, while the sum is 29.

The square root of 52181417 is about 7223.6706043396. The cubic root of 52181417 is about 373.6846765997.

The spelling of 52181417 in words is "fifty-two million, one hundred eighty-one thousand, four hundred seventeen".