5656642603 has 2 divisors, whose sum is σ = 5656642604. Its totient is φ = 5656642602.

The previous prime is 5656642583. The next prime is 5656642631. The reversal of 5656642603 is 3062466565.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5656642603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5656642603.

It is not a weakly prime, because it can be changed into another prime (5656642403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828321301 + 2828321302.

It is an arithmetic number, because the mean of its divisors is an integer number (2828321302).

Almost surely, 2^5656642603 is an apocalyptic number.

5656642603 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656642603 is an equidigital number, since it uses as much as digits as its factorization.

5656642603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 43.

The square root of 5656642603 is about 75210.6548502272. The cubic root of 5656642603 is about 1781.7752145143.

The spelling of 5656642603 in words is "five billion, six hundred fifty-six million, six hundred forty-two thousand, six hundred three".