56273647 has 4 divisors (see below), whose sum is σ = 56294200. Its totient is φ = 56253096.

The previous prime is 56273629. The next prime is 56273681. The reversal of 56273647 is 74637265.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56273647 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56273047) 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 3 ways as a sum of consecutive naturals, for example, 5397 + ... + 11902.

It is an arithmetic number, because the mean of its divisors is an integer number (14073550).

Almost surely, 2^56273647 is an apocalyptic number.

56273647 is a deficient number, since it is larger than the sum of its proper divisors (20553).

56273647 is a wasteful number, since it uses less digits than its factorization.

56273647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20552.

The product of its digits is 211680, while the sum is 40.

The square root of 56273647 is about 7501.5763010183. The cubic root of 56273647 is about 383.2084002870.

The spelling of 56273647 in words is "fifty-six million, two hundred seventy-three thousand, six hundred forty-seven".