56243447 has 8 divisors (see below), whose sum is σ = 60708816. Its totient is φ = 51797952.

The previous prime is 56243437. The next prime is 56243449. The reversal of 56243447 is 74434265.

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-56243447 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 (56243449) 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, 1208 + ... + 10674.

It is an arithmetic number, because the mean of its divisors is an integer number (7588602).

Almost surely, 2^56243447 is an apocalyptic number.

56243447 is a deficient number, since it is larger than the sum of its proper divisors (4465369).

56243447 is a wasteful number, since it uses less digits than its factorization.

56243447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9937.

The product of its digits is 80640, while the sum is 35.

The square root of 56243447 is about 7499.5631206091. The cubic root of 56243447 is about 383.1398367280.

The spelling of 56243447 in words is "fifty-six million, two hundred forty-three thousand, four hundred forty-seven".