5263639 has 2 divisors, whose sum is σ = 5263640. Its totient is φ = 5263638.

The previous prime is 5263637. The next prime is 5263649. The reversal of 5263639 is 9363625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5263639 - 2¹ = 5263637 is a prime.

Together with 5263637, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5263631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631819 + 2631820.

It is an arithmetic number, because the mean of its divisors is an integer number (2631820).

Almost surely, 2^5263639 is an apocalyptic number.

5263639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5263639 is an equidigital number, since it uses as much as digits as its factorization.

5263639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 34.

The square root of 5263639 is about 2294.2621907707. The cubic root of 5263639 is about 173.9517085345.

The spelling of 5263639 in words is "five million, two hundred sixty-three thousand, six hundred thirty-nine".