5257239 has 16 divisors (see below), whose sum is σ = 7604352. Its totient is φ = 3211488.

The previous prime is 5257201. The next prime is 5257253. The reversal of 5257239 is 9327525.

It is not a de Polignac number, because 5257239 - 2⁷ = 5257111 is a prime.

It is a d-powerful number, because it can be written as 5⁶ + 2 + 5⁸ + 7⁴ + 2¹⁶ + 3¹⁴ + 9² .

5257239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5256239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5944 + ... + 6770.

It is an arithmetic number, because the mean of its divisors is an integer number (475272).

Almost surely, 2^5257239 is an apocalyptic number.

5257239 is a deficient number, since it is larger than the sum of its proper divisors (2347113).

5257239 is a wasteful number, since it uses less digits than its factorization.

5257239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006.

The product of its digits is 18900, while the sum is 33.

The square root of 5257239 is about 2292.8669826224. The cubic root of 5257239 is about 173.8811779597.

It can be divided in two parts, 52 and 57239, that added together give a triangular number (57291 = T₃₃₈).

The spelling of 5257239 in words is "five million, two hundred fifty-seven thousand, two hundred thirty-nine".