56289871 has 8 divisors (see below), whose sum is σ = 61680384. Its totient is φ = 50944920.

The previous prime is 56289859. The next prime is 56289887. The reversal of 56289871 is 17898265.

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

It is a cyclic number.

It is not a de Polignac number, because 56289871 - 2⁷ = 56289743 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 (56289851) 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, 8775 + ... + 13768.

It is an arithmetic number, because the mean of its divisors is an integer number (7710048).

Almost surely, 2^56289871 is an apocalyptic number.

56289871 is a deficient number, since it is larger than the sum of its proper divisors (5390513).

56289871 is a wasteful number, since it uses less digits than its factorization.

56289871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22781.

The product of its digits is 241920, while the sum is 46.

The square root of 56289871 is about 7502.6575958123. The cubic root of 56289871 is about 383.2452237738.

The spelling of 56289871 in words is "fifty-six million, two hundred eighty-nine thousand, eight hundred seventy-one".