52364639 has 2 divisors, whose sum is σ = 52364640. Its totient is φ = 52364638.

The previous prime is 52364621. The next prime is 52364651. The reversal of 52364639 is 93646325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52364639 - 2¹⁶ = 52299103 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52364699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26182319 + 26182320.

It is an arithmetic number, because the mean of its divisors is an integer number (26182320).

Almost surely, 2^52364639 is an apocalyptic number.

52364639 is a deficient number, since it is larger than the sum of its proper divisors (1).

52364639 is an equidigital number, since it uses as much as digits as its factorization.

52364639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 38.

The square root of 52364639 is about 7236.3415480476. The cubic root of 52364639 is about 374.1215324671.

The spelling of 52364639 in words is "fifty-two million, three hundred sixty-four thousand, six hundred thirty-nine".