56272081 has 4 divisors (see below), whose sum is σ = 56345652. Its totient is φ = 56198512.

The previous prime is 56272033. The next prime is 56272087. The reversal of 56272081 is 18027265.

56272081 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.

It can be written as a sum of positive squares in 2 ways, for example, as 16329681 + 39942400 = 4041^2 + 6320^2 .

It is a cyclic number.

It is not a de Polignac number, because 56272081 - 2⁹ = 56271569 is a prime.

It is a super-2 number, since 2×56272081² = 6333094200141122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56272087) 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, 35626 + ... + 37171.

It is an arithmetic number, because the mean of its divisors is an integer number (14086413).

Almost surely, 2^56272081 is an apocalyptic number.

It is an amenable number.

56272081 is a deficient number, since it is larger than the sum of its proper divisors (73571).

56272081 is an equidigital number, since it uses as much as digits as its factorization.

56272081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73570.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 56272081 is about 7501.4719222297. The cubic root of 56272081 is about 383.2048455744.

The spelling of 56272081 in words is "fifty-six million, two hundred seventy-two thousand, eighty-one".