52436287 has 4 divisors (see below), whose sum is σ = 52836696. Its totient is φ = 52035880.

The previous prime is 52436281. The next prime is 52436299. The reversal of 52436287 is 78263425.

52436287 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52436287 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 (52436281) 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, 200008 + ... + 200269.

It is an arithmetic number, because the mean of its divisors is an integer number (13209174).

Almost surely, 2^52436287 is an apocalyptic number.

52436287 is a deficient number, since it is larger than the sum of its proper divisors (400409).

52436287 is a wasteful number, since it uses less digits than its factorization.

52436287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400408.

The product of its digits is 80640, while the sum is 37.

The square root of 52436287 is about 7241.2904236745. The cubic root of 52436287 is about 374.2920854968.

The spelling of 52436287 in words is "fifty-two million, four hundred thirty-six thousand, two hundred eighty-seven".