56443547 has 16 divisors (see below), whose sum is σ = 61036800. Its totient is φ = 52034400.

The previous prime is 56443531. The next prime is 56443567. The reversal of 56443547 is 74534465.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56443547 - 2⁴ = 56443531 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 56443547.

It is not an unprimeable number, because it can be changed into a prime (56443507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128354 + ... + 128792.

It is an arithmetic number, because the mean of its divisors is an integer number (3814800).

Almost surely, 2^56443547 is an apocalyptic number.

56443547 is a deficient number, since it is larger than the sum of its proper divisors (4593253).

56443547 is a wasteful number, since it uses less digits than its factorization.

56443547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626.

The product of its digits is 201600, while the sum is 38.

The square root of 56443547 is about 7512.8920529980. The cubic root of 56443547 is about 383.5936705814.

The spelling of 56443547 in words is "fifty-six million, four hundred forty-three thousand, five hundred forty-seven".