5250391 has 2 divisors, whose sum is σ = 5250392. Its totient is φ = 5250390.

The previous prime is 5250373. The next prime is 5250407. The reversal of 5250391 is 1930525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5250391 - 2⁵ = 5250359 is a prime.

5250391 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5250341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625195 + 2625196.

It is an arithmetic number, because the mean of its divisors is an integer number (2625196).

Almost surely, 2^5250391 is an apocalyptic number.

5250391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5250391 is an equidigital number, since it uses as much as digits as its factorization.

5250391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 5250391 is about 2291.3731690844. The cubic root of 5250391 is about 173.8056468243.

The spelling of 5250391 in words is "five million, two hundred fifty thousand, three hundred ninety-one".