5250739 has 16 divisors (see below), whose sum is σ = 6253632. Its totient is φ = 4359168.

The previous prime is 5250731. The next prime is 5250743. The reversal of 5250739 is 9370525.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5250739 - 2³ = 5250731 is a prime.

It is a super-2 number, since 2×5250739² = 55140520092242, which contains 22 as substring.

It is a Duffinian number.

5250739 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5250739.

It is not an unprimeable number, because it can be changed into a prime (5250731) 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 in 15 ways as a sum of consecutive naturals, for example, 4567 + ... + 5599.

It is an arithmetic number, because the mean of its divisors is an integer number (390852).

Almost surely, 2^5250739 is an apocalyptic number.

5250739 is a deficient number, since it is larger than the sum of its proper divisors (1002893).

5250739 is a wasteful number, since it uses less digits than its factorization.

5250739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 5250739 is about 2291.4491048243. The cubic root of 5250739 is about 173.8094867306.

The spelling of 5250739 in words is "five million, two hundred fifty thousand, seven hundred thirty-nine".