56006603 has 2 divisors, whose sum is σ = 56006604. Its totient is φ = 56006602.

The previous prime is 56006579. The next prime is 56006611. The reversal of 56006603 is 30660065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56006603 - 2¹⁴ = 55990219 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56006663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28003301 + 28003302.

It is an arithmetic number, because the mean of its divisors is an integer number (28003302).

Almost surely, 2^56006603 is an apocalyptic number.

56006603 is a deficient number, since it is larger than the sum of its proper divisors (1).

56006603 is an equidigital number, since it uses as much as digits as its factorization.

56006603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 56006603 is about 7483.7559420387. The cubic root of 56006603 is about 382.6012729690.

Adding to 56006603 its reverse (30660065), we get a palindrome (86666668).

The spelling of 56006603 in words is "fifty-six million, six thousand, six hundred three".