52946809 has 2 divisors, whose sum is σ = 52946810. Its totient is φ = 52946808.

The previous prime is 52946737. The next prime is 52946869. The reversal of 52946809 is 90864925.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46621584 + 6325225 = 6828^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 52946809 - 2¹¹ = 52944761 is a prime.

It is not a weakly prime, because it can be changed into another prime (52946869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26473404 + 26473405.

It is an arithmetic number, because the mean of its divisors is an integer number (26473405).

Almost surely, 2^52946809 is an apocalyptic number.

It is an amenable number.

52946809 is a deficient number, since it is larger than the sum of its proper divisors (1).

52946809 is an equidigital number, since it uses as much as digits as its factorization.

52946809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 52946809 is about 7276.4557993573. The cubic root of 52946809 is about 375.5028726089.

The spelling of 52946809 in words is "fifty-two million, nine hundred forty-six thousand, eight hundred nine".