52806157 has 2 divisors, whose sum is σ = 52806158. Its totient is φ = 52806156.

The previous prime is 52806119. The next prime is 52806163. The reversal of 52806157 is 75160825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42172036 + 10634121 = 6494^2 + 3261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52806157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52806557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26403078 + 26403079.

It is an arithmetic number, because the mean of its divisors is an integer number (26403079).

Almost surely, 2^52806157 is an apocalyptic number.

It is an amenable number.

52806157 is a deficient number, since it is larger than the sum of its proper divisors (1).

52806157 is an equidigital number, since it uses as much as digits as its factorization.

52806157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 52806157 is about 7266.7845021027. The cubic root of 52806157 is about 375.1700727816.

The spelling of 52806157 in words is "fifty-two million, eight hundred six thousand, one hundred fifty-seven".