56004217 has 2 divisors, whose sum is σ = 56004218. Its totient is φ = 56004216.

The previous prime is 56004209. The next prime is 56004281. The reversal of 56004217 is 71240065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53860921 + 2143296 = 7339^2 + 1464^2 .

It is a cyclic number.

It is not a de Polignac number, because 56004217 - 2³ = 56004209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56004191 and 56004200.

It is not a weakly prime, because it can be changed into another prime (56004317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28002108 + 28002109.

It is an arithmetic number, because the mean of its divisors is an integer number (28002109).

Almost surely, 2^56004217 is an apocalyptic number.

It is an amenable number.

56004217 is a deficient number, since it is larger than the sum of its proper divisors (1).

56004217 is an equidigital number, since it uses as much as digits as its factorization.

56004217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 56004217 is about 7483.5965284080. The cubic root of 56004217 is about 382.5958396834.

The spelling of 56004217 in words is "fifty-six million, four thousand, two hundred seventeen".