56458439 has 4 divisors (see below), whose sum is σ = 56475120. Its totient is φ = 56441760.

The previous prime is 56458429. The next prime is 56458453. The reversal of 56458439 is 93485465.

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 56458439 - 2²⁴ = 39681223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56458439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56458429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1259 + ... + 10700.

It is an arithmetic number, because the mean of its divisors is an integer number (14118780).

Almost surely, 2^56458439 is an apocalyptic number.

56458439 is a deficient number, since it is larger than the sum of its proper divisors (16681).

56458439 is a wasteful number, since it uses less digits than its factorization.

56458439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16680.

The product of its digits is 518400, while the sum is 44.

The square root of 56458439 is about 7513.8830839986. The cubic root of 56458439 is about 383.6274032513.

The spelling of 56458439 in words is "fifty-six million, four hundred fifty-eight thousand, four hundred thirty-nine".