4255749 has 12 divisors (see below), whose sum is σ = 6165900. Its totient is φ = 2828544.

The previous prime is 4255747. The next prime is 4255751. The reversal of 4255749 is 9475524.

It is an interprime number because it is at equal distance from previous prime (4255747) and next prime (4255751).

It can be written as a sum of positive squares in 2 ways, for example, as 1483524 + 2772225 = 1218^2 + 1665^2 .

It is not a de Polignac number, because 4255749 - 2¹ = 4255747 is a prime.

It is a super-2 number, since 2×4255749² = 36222799102002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4117 + ... + 5045.

It is an arithmetic number, because the mean of its divisors is an integer number (513825).

Almost surely, 2^4255749 is an apocalyptic number.

It is an amenable number.

4255749 is a deficient number, since it is larger than the sum of its proper divisors (1910151).

4255749 is a wasteful number, since it uses less digits than its factorization.

4255749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1441 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 4255749 is about 2062.9466789037. The cubic root of 4255749 is about 162.0535945216.

The spelling of 4255749 in words is "four million, two hundred fifty-five thousand, seven hundred forty-nine".