56439547 has 8 divisors (see below), whose sum is σ = 57202992. Its totient is φ = 55680000.

The previous prime is 56439517. The next prime is 56439563. The reversal of 56439547 is 74593465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56439547 - 2¹¹ = 56437499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56439517) 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 7 ways as a sum of consecutive naturals, for example, 38172 + ... + 39622.

It is an arithmetic number, because the mean of its divisors is an integer number (7150374).

Almost surely, 2^56439547 is an apocalyptic number.

56439547 is a deficient number, since it is larger than the sum of its proper divisors (763445).

56439547 is a wasteful number, since it uses less digits than its factorization.

56439547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949.

The product of its digits is 453600, while the sum is 43.

The square root of 56439547 is about 7512.6258392123. The cubic root of 56439547 is about 383.5846089554.

The spelling of 56439547 in words is "fifty-six million, four hundred thirty-nine thousand, five hundred forty-seven".