5656603 has 2 divisors, whose sum is σ = 5656604. Its totient is φ = 5656602.

The previous prime is 5656577. The next prime is 5656619. The reversal of 5656603 is 3066565.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5656603 - 2¹³ = 5648411 is a prime.

5656603 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5656003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828301 + 2828302.

It is an arithmetic number, because the mean of its divisors is an integer number (2828302).

Almost surely, 2^5656603 is an apocalyptic number.

5656603 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656603 is an equidigital number, since it uses as much as digits as its factorization.

5656603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 5656603 is about 2378.3614107196. The cubic root of 5656603 is about 178.1771056346.

The spelling of 5656603 in words is "five million, six hundred fifty-six thousand, six hundred three".