5260391 has 2 divisors, whose sum is σ = 5260392. Its totient is φ = 5260390.

The previous prime is 5260379. The next prime is 5260417. The reversal of 5260391 is 1930625.

It is an a-pointer prime, because the next prime (5260417) can be obtained adding 5260391 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5260391 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5260391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5260691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630195 + 2630196.

It is an arithmetic number, because the mean of its divisors is an integer number (2630196).

Almost surely, 2^5260391 is an apocalyptic number.

5260391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5260391 is an equidigital number, since it uses as much as digits as its factorization.

5260391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 5260391 is about 2293.5542287027. The cubic root of 5260391 is about 173.9159214170.

The spelling of 5260391 in words is "five million, two hundred sixty thousand, three hundred ninety-one".