5249639 has 2 divisors, whose sum is σ = 5249640. Its totient is φ = 5249638.

The previous prime is 5249627. The next prime is 5249653. The reversal of 5249639 is 9369425.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5249639 - 2¹² = 5245543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5249659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2624819 + 2624820.

It is an arithmetic number, because the mean of its divisors is an integer number (2624820).

Almost surely, 2^5249639 is an apocalyptic number.

5249639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5249639 is an equidigital number, since it uses as much as digits as its factorization.

5249639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 5249639 is about 2291.2090694653. The cubic root of 5249639 is about 173.7973485161.

The spelling of 5249639 in words is "five million, two hundred forty-nine thousand, six hundred thirty-nine".