56268287 has 4 divisors (see below), whose sum is σ = 56356440. Its totient is φ = 56180136.

The previous prime is 56268271. The next prime is 56268301. The reversal of 56268287 is 78286265.

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 56268287 - 2⁴ = 56268271 is a prime.

It is a super-2 number, since 2×56268287² = 6332240243828738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56268217) 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, 43112 + ... + 44397.

It is an arithmetic number, because the mean of its divisors is an integer number (14089110).

Almost surely, 2^56268287 is an apocalyptic number.

56268287 is a deficient number, since it is larger than the sum of its proper divisors (88153).

56268287 is an equidigital number, since it uses as much as digits as its factorization.

56268287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88152.

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

The square root of 56268287 is about 7501.2190342637. The cubic root of 56268287 is about 383.1962331812.

The spelling of 56268287 in words is "fifty-six million, two hundred sixty-eight thousand, two hundred eighty-seven".