52307557 has 2 divisors, whose sum is σ = 52307558. Its totient is φ = 52307556.

The previous prime is 52307539. The next prime is 52307611. The reversal of 52307557 is 75570325.

52307557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46226401 + 6081156 = 6799^2 + 2466^2 .

It is a cyclic number.

It is not a de Polignac number, because 52307557 - 2⁷ = 52307429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52307537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26153778 + 26153779.

It is an arithmetic number, because the mean of its divisors is an integer number (26153779).

Almost surely, 2^52307557 is an apocalyptic number.

It is an amenable number.

52307557 is a deficient number, since it is larger than the sum of its proper divisors (1).

52307557 is an equidigital number, since it uses as much as digits as its factorization.

52307557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 52307557 is about 7232.3963525238. The cubic root of 52307557 is about 373.9855413973.

The spelling of 52307557 in words is "fifty-two million, three hundred seven thousand, five hundred fifty-seven".