4255591 has 2 divisors, whose sum is σ = 4255592. Its totient is φ = 4255590.

The previous prime is 4255583. The next prime is 4255597. The reversal of 4255591 is 1955524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4255591 - 2³ = 4255583 is a prime.

It is a super-2 number, since 2×4255591² = 36220109518562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4255597) 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, 2127795 + 2127796.

It is an arithmetic number, because the mean of its divisors is an integer number (2127796).

Almost surely, 2^4255591 is an apocalyptic number.

4255591 is a deficient number, since it is larger than the sum of its proper divisors (1).

4255591 is an equidigital number, since it uses as much as digits as its factorization.

4255591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 31.

The square root of 4255591 is about 2062.9083838116. The cubic root of 4255591 is about 162.0515890160.

The spelling of 4255591 in words is "four million, two hundred fifty-five thousand, five hundred ninety-one".