52187017 has 4 divisors (see below), whose sum is σ = 52336900. Its totient is φ = 52037136.

The previous prime is 52186987. The next prime is 52187029. The reversal of 52187017 is 71078125.

It is a happy number.

52187017 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 38489616 + 13697401 = 6204^2 + 3701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52187017 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 52187017.

It is not an unprimeable number, because it can be changed into a prime (52187087) 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, 74418 + ... + 75115.

It is an arithmetic number, because the mean of its divisors is an integer number (13084225).

Almost surely, 2^52187017 is an apocalyptic number.

It is an amenable number.

52187017 is a deficient number, since it is larger than the sum of its proper divisors (149883).

52187017 is a wasteful number, since it uses less digits than its factorization.

52187017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149882.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 52187017 is about 7224.0582085141. The cubic root of 52187017 is about 373.6980438062.

The spelling of 52187017 in words is "fifty-two million, one hundred eighty-seven thousand, seventeen".