56459891 has 8 divisors (see below), whose sum is σ = 58155504. Its totient is φ = 54773280.

The previous prime is 56459881. The next prime is 56459933. The reversal of 56459891 is 19895465.

It is a happy number.

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 56459891 - 2¹⁰ = 56458867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56459801) 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, 11756 + ... + 15846.

It is an arithmetic number, because the mean of its divisors is an integer number (7269438).

Almost surely, 2^56459891 is an apocalyptic number.

56459891 is a deficient number, since it is larger than the sum of its proper divisors (1695613).

56459891 is a wasteful number, since it uses less digits than its factorization.

56459891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501.

The product of its digits is 388800, while the sum is 47.

The square root of 56459891 is about 7513.9797045241. The cubic root of 56459891 is about 383.6306919372.

The spelling of 56459891 in words is "fifty-six million, four hundred fifty-nine thousand, eight hundred ninety-one".