56440585 has 4 divisors (see below), whose sum is σ = 67728708. Its totient is φ = 45152464.

The previous prime is 56440547. The next prime is 56440603. The reversal of 56440585 is 58504465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34715664 + 21724921 = 5892^2 + 4661^2 .

It is a cyclic number.

It is not a de Polignac number, because 56440585 - 2⁹ = 56440073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5644054 + ... + 5644063.

It is an arithmetic number, because the mean of its divisors is an integer number (16932177).

Almost surely, 2^56440585 is an apocalyptic number.

It is an amenable number.

56440585 is a deficient number, since it is larger than the sum of its proper divisors (11288123).

56440585 is a wasteful number, since it uses less digits than its factorization.

56440585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11288122.

The product of its (nonzero) digits is 96000, while the sum is 37.

The square root of 56440585 is about 7512.6949225960. The cubic root of 56440585 is about 383.5869604885.

The spelling of 56440585 in words is "fifty-six million, four hundred forty thousand, five hundred eighty-five".