52552639 has 2 divisors, whose sum is σ = 52552640. Its totient is φ = 52552638.

The previous prime is 52552637. The next prime is 52552679. The reversal of 52552639 is 93625525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52552639 - 2¹ = 52552637 is a prime.

Together with 52552637, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 52552598 and 52552607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52552637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26276319 + 26276320.

It is an arithmetic number, because the mean of its divisors is an integer number (26276320).

Almost surely, 2^52552639 is an apocalyptic number.

52552639 is a deficient number, since it is larger than the sum of its proper divisors (1).

52552639 is an equidigital number, since it uses as much as digits as its factorization.

52552639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 37.

The square root of 52552639 is about 7249.3198991354. The cubic root of 52552639 is about 374.5687225599.

The spelling of 52552639 in words is "fifty-two million, five hundred fifty-two thousand, six hundred thirty-nine".