56273257 has 2 divisors, whose sum is σ = 56273258. Its totient is φ = 56273256.

The previous prime is 56273221. The next prime is 56273297. The reversal of 56273257 is 75237265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33767721 + 22505536 = 5811^2 + 4744^2 .

It is a cyclic number.

It is not a de Polignac number, because 56273257 - 2¹¹ = 56271209 is a prime.

It is not a weakly prime, because it can be changed into another prime (56273207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28136628 + 28136629.

It is an arithmetic number, because the mean of its divisors is an integer number (28136629).

Almost surely, 2^56273257 is an apocalyptic number.

It is an amenable number.

56273257 is a deficient number, since it is larger than the sum of its proper divisors (1).

56273257 is an equidigital number, since it uses as much as digits as its factorization.

56273257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 37.

The square root of 56273257 is about 7501.5503064367. The cubic root of 56273257 is about 383.2075150199.

The spelling of 56273257 in words is "fifty-six million, two hundred seventy-three thousand, two hundred fifty-seven".