56332217 has 2 divisors, whose sum is σ = 56332218. Its totient is φ = 56332216.

The previous prime is 56332189. The next prime is 56332223. The reversal of 56332217 is 71223365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56310016 + 22201 = 7504^2 + 149^2 .

It is a cyclic number.

It is not a de Polignac number, because 56332217 - 2⁶ = 56332153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56332217.

It is not a weakly prime, because it can be changed into another prime (56332277) 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, 28166108 + 28166109.

It is an arithmetic number, because the mean of its divisors is an integer number (28166109).

Almost surely, 2^56332217 is an apocalyptic number.

It is an amenable number.

56332217 is a deficient number, since it is larger than the sum of its proper divisors (1).

56332217 is an equidigital number, since it uses as much as digits as its factorization.

56332217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 29.

The square root of 56332217 is about 7505.4791319409. The cubic root of 56332217 is about 383.3413028379.

The spelling of 56332217 in words is "fifty-six million, three hundred thirty-two thousand, two hundred seventeen".