52815901 has 2 divisors, whose sum is σ = 52815902. Its totient is φ = 52815900.

The previous prime is 52815869. The next prime is 52815907. The reversal of 52815901 is 10951825.

52815901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31416025 + 21399876 = 5605^2 + 4626^2 .

It is a cyclic number.

It is not a de Polignac number, because 52815901 - 2⁵ = 52815869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52815907) 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, 26407950 + 26407951.

It is an arithmetic number, because the mean of its divisors is an integer number (26407951).

Almost surely, 2^52815901 is an apocalyptic number.

It is an amenable number.

52815901 is a deficient number, since it is larger than the sum of its proper divisors (1).

52815901 is an equidigital number, since it uses as much as digits as its factorization.

52815901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 52815901 is about 7267.4549190208. The cubic root of 52815901 is about 375.1931473154.

The spelling of 52815901 in words is "fifty-two million, eight hundred fifteen thousand, nine hundred one".