52866287 has 4 divisors (see below), whose sum is σ = 53246760. Its totient is φ = 52485816.

The previous prime is 52866251. The next prime is 52866293. The reversal of 52866287 is 78266825.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52866287 - 2⁶ = 52866223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52866887) 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, 190028 + ... + 190305.

It is an arithmetic number, because the mean of its divisors is an integer number (13311690).

Almost surely, 2^52866287 is an apocalyptic number.

52866287 is a deficient number, since it is larger than the sum of its proper divisors (380473).

52866287 is a wasteful number, since it uses less digits than its factorization.

52866287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380472.

The product of its digits is 322560, while the sum is 44.

The square root of 52866287 is about 7270.9206432198. The cubic root of 52866287 is about 375.3124199408.

The spelling of 52866287 in words is "fifty-two million, eight hundred sixty-six thousand, two hundred eighty-seven".