5251279 has 6 divisors (see below), whose sum is σ = 5772200. Its totient is φ = 4773780.

The previous prime is 5251273. The next prime is 5251331. The reversal of 5251279 is 9721525.

It is not a de Polignac number, because 5251279 - 2³ = 5251271 is a prime.

It is a super-2 number, since 2×5251279² = 55151862271682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5251279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21579 + ... + 21820.

Almost surely, 2^5251279 is an apocalyptic number.

5251279 is a deficient number, since it is larger than the sum of its proper divisors (520921).

5251279 is a wasteful number, since it uses less digits than its factorization.

5251279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43421 (or 43410 counting only the distinct ones).

The product of its digits is 6300, while the sum is 31.

The square root of 5251279 is about 2291.5669311630. The cubic root of 5251279 is about 173.8154448700.

The spelling of 5251279 in words is "five million, two hundred fifty-one thousand, two hundred seventy-nine".