56281733 has 4 divisors (see below), whose sum is σ = 56994240. Its totient is φ = 55569228.

The previous prime is 56281703. The next prime is 56281739. The reversal of 56281733 is 33718265.

56281733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56281733 - 2⁶ = 56281669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56281693 and 56281702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56281739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356135 + ... + 356292.

It is an arithmetic number, because the mean of its divisors is an integer number (14248560).

Almost surely, 2^56281733 is an apocalyptic number.

It is an amenable number.

56281733 is a deficient number, since it is larger than the sum of its proper divisors (712507).

56281733 is an equidigital number, since it uses as much as digits as its factorization.

56281733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712506.

The product of its digits is 30240, while the sum is 35.

The square root of 56281733 is about 7502.1152350520. The cubic root of 56281733 is about 383.2267539030.

Adding to 56281733 its reverse (33718265), we get a palindrome (89999998).

The spelling of 56281733 in words is "fifty-six million, two hundred eighty-one thousand, seven hundred thirty-three".