52307389 has 2 divisors, whose sum is σ = 52307390. Its totient is φ = 52307388.

The previous prime is 52307341. The next prime is 52307429. The reversal of 52307389 is 98370325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39275289 + 13032100 = 6267^2 + 3610^2 .

It is a cyclic number.

It is not a de Polignac number, because 52307389 - 2¹³ = 52299197 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 (52307309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26153694 + 26153695.

It is an arithmetic number, because the mean of its divisors is an integer number (26153695).

Almost surely, 2^52307389 is an apocalyptic number.

It is an amenable number.

52307389 is a deficient number, since it is larger than the sum of its proper divisors (1).

52307389 is an equidigital number, since it uses as much as digits as its factorization.

52307389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 52307389 is about 7232.3847381068. The cubic root of 52307389 is about 373.9851410113.

The spelling of 52307389 in words is "fifty-two million, three hundred seven thousand, three hundred eighty-nine".