5661203 has 2 divisors, whose sum is σ = 5661204. Its totient is φ = 5661202.

The previous prime is 5661191. The next prime is 5661209. The reversal of 5661203 is 3021665.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5661203 is a prime.

It is not a weakly prime, because it can be changed into another prime (5661209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830601 + 2830602.

It is an arithmetic number, because the mean of its divisors is an integer number (2830602).

Almost surely, 2^5661203 is an apocalyptic number.

5661203 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661203 is an equidigital number, since it uses as much as digits as its factorization.

5661203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 5661203 is about 2379.3282665492. The cubic root of 5661203 is about 178.2253909520.

Adding to 5661203 its reverse (3021665), we get a palindrome (8682868).

The spelling of 5661203 in words is "five million, six hundred sixty-one thousand, two hundred three".