56985549 has 4 divisors (see below), whose sum is σ = 75980736. Its totient is φ = 37990364.

The previous prime is 56985499. The next prime is 56985553. The reversal of 56985549 is 94558965.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56985549 - 2¹¹ = 56983501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56985569) 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, 9497589 + ... + 9497594.

It is an arithmetic number, because the mean of its divisors is an integer number (18995184).

Almost surely, 2^56985549 is an apocalyptic number.

It is an amenable number.

56985549 is a deficient number, since it is larger than the sum of its proper divisors (18995187).

56985549 is a wasteful number, since it uses less digits than its factorization.

56985549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18995186.

The product of its digits is 1944000, while the sum is 51.

The square root of 56985549 is about 7548.8773337497. The cubic root of 56985549 is about 384.8175871684.

The spelling of 56985549 in words is "fifty-six million, nine hundred eighty-five thousand, five hundred forty-nine".