56605547 has 4 divisors (see below), whose sum is σ = 56985600. Its totient is φ = 56225496.

The previous prime is 56605519. The next prime is 56605559. The reversal of 56605547 is 74550665.

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 56605547 - 2¹² = 56601451 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 56605547.

It is not an unprimeable number, because it can be changed into a prime (56605567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189803 + ... + 190100.

It is an arithmetic number, because the mean of its divisors is an integer number (14246400).

Almost surely, 2^56605547 is an apocalyptic number.

56605547 is a deficient number, since it is larger than the sum of its proper divisors (380053).

56605547 is a wasteful number, since it uses less digits than its factorization.

56605547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380052.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 56605547 is about 7523.6657953421. The cubic root of 56605547 is about 383.9603072217.

The spelling of 56605547 in words is "fifty-six million, six hundred five thousand, five hundred forty-seven".