5591903 has 2 divisors, whose sum is σ = 5591904. Its totient is φ = 5591902.

The previous prime is 5591899. The next prime is 5591917. The reversal of 5591903 is 3091955.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5591903 - 2² = 5591899 is a prime.

It is a super-2 number, since 2×5591903² = 62538758322818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5591903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5591933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2795951 + 2795952.

It is an arithmetic number, because the mean of its divisors is an integer number (2795952).

Almost surely, 2^5591903 is an apocalyptic number.

5591903 is a deficient number, since it is larger than the sum of its proper divisors (1).

5591903 is an equidigital number, since it uses as much as digits as its factorization.

5591903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 5591903 is about 2364.7204908826. The cubic root of 5591903 is about 177.4951714616.

The spelling of 5591903 in words is "five million, five hundred ninety-one thousand, nine hundred three".