56000447 has 4 divisors (see below), whose sum is σ = 56233056. Its totient is φ = 55767840.

The previous prime is 56000407. The next prime is 56000449. The reversal of 56000447 is 74400065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74400065 = 5 ⋅14880013.

It is a cyclic number.

It is not a de Polignac number, because 56000447 - 2²⁴ = 39223231 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 (56000449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115943 + ... + 116424.

It is an arithmetic number, because the mean of its divisors is an integer number (14058264).

Almost surely, 2^56000447 is an apocalyptic number.

56000447 is a deficient number, since it is larger than the sum of its proper divisors (232609).

56000447 is a wasteful number, since it uses less digits than its factorization.

56000447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232608.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 56000447 is about 7483.3446399321. The cubic root of 56000447 is about 382.5872545044.

The spelling of 56000447 in words is "fifty-six million, four hundred forty-seven", and thus it is an aban number.