5251639 has 8 divisors (see below), whose sum is σ = 5549760. Its totient is φ = 4961376.

The previous prime is 5251627. The next prime is 5251663. The reversal of 5251639 is 9361525.

5251639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5251639 - 2⁵ = 5251607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5251639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564 + ... + 3289.

It is an arithmetic number, because the mean of its divisors is an integer number (693720).

Almost surely, 2^5251639 is an apocalyptic number.

5251639 is a deficient number, since it is larger than the sum of its proper divisors (298121).

5251639 is a wasteful number, since it uses less digits than its factorization.

5251639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929.

The product of its digits is 8100, while the sum is 31.

The square root of 5251639 is about 2291.6454786899. The cubic root of 5251639 is about 173.8194167361.

The spelling of 5251639 in words is "five million, two hundred fifty-one thousand, six hundred thirty-nine".