56311273 has 2 divisors, whose sum is σ = 56311274. Its totient is φ = 56311272.

The previous prime is 56311271. The next prime is 56311309. The reversal of 56311273 is 37211365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54878464 + 1432809 = 7408^2 + 1197^2 .

It is a cyclic number.

It is not a de Polignac number, because 56311273 - 2¹ = 56311271 is a prime.

Together with 56311271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56311271) 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 as a sum of consecutive naturals, namely, 28155636 + 28155637.

It is an arithmetic number, because the mean of its divisors is an integer number (28155637).

Almost surely, 2^56311273 is an apocalyptic number.

It is an amenable number.

56311273 is a deficient number, since it is larger than the sum of its proper divisors (1).

56311273 is an equidigital number, since it uses as much as digits as its factorization.

56311273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 56311273 is about 7504.0837548631. The cubic root of 56311273 is about 383.2937889054.

The spelling of 56311273 in words is "fifty-six million, three hundred eleven thousand, two hundred seventy-three".