56144287 has 8 divisors (see below), whose sum is σ = 56756736. Its totient is φ = 55534752.

The previous prime is 56144269. The next prime is 56144303. The reversal of 56144287 is 78244165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56144287 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 (56144687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82593 + ... + 83269.

It is an arithmetic number, because the mean of its divisors is an integer number (7094592).

Almost surely, 2^56144287 is an apocalyptic number.

56144287 is a deficient number, since it is larger than the sum of its proper divisors (612449).

56144287 is a wasteful number, since it uses less digits than its factorization.

56144287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457.

The product of its digits is 53760, while the sum is 37.

The square root of 56144287 is about 7492.9491523698. The cubic root of 56144287 is about 382.9145393972.

The spelling of 56144287 in words is "fifty-six million, one hundred forty-four thousand, two hundred eighty-seven".