5255749 has 4 divisors (see below), whose sum is σ = 5383980. Its totient is φ = 5127520.

The previous prime is 5255741. The next prime is 5255773. The reversal of 5255749 is 9475525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3132900 + 2122849 = 1770^2 + 1457^2 .

It is a cyclic number.

It is not a de Polignac number, because 5255749 - 2³ = 5255741 is a prime.

It is an Ulam number.

It is a Duffinian number.

5255749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5255741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64054 + ... + 64135.

It is an arithmetic number, because the mean of its divisors is an integer number (1345995).

Almost surely, 2^5255749 is an apocalyptic number.

It is an amenable number.

5255749 is a deficient number, since it is larger than the sum of its proper divisors (128231).

5255749 is a wasteful number, since it uses less digits than its factorization.

5255749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128230.

The product of its digits is 63000, while the sum is 37.

The square root of 5255749 is about 2292.5420388730. The cubic root of 5255749 is about 173.8647493467.

The spelling of 5255749 in words is "five million, two hundred fifty-five thousand, seven hundred forty-nine".