52315985 has 4 divisors (see below), whose sum is σ = 62779188. Its totient is φ = 41852784.

The previous prime is 52315981. The next prime is 52316051. The reversal of 52315985 is 58951325.

52315985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18011536 + 34304449 = 4244^2 + 5857^2 .

It is a cyclic number.

It is not a de Polignac number, because 52315985 - 2² = 52315981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52315981) 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 in 3 ways as a sum of consecutive naturals, for example, 5231594 + ... + 5231603.

It is an arithmetic number, because the mean of its divisors is an integer number (15694797).

Almost surely, 2^52315985 is an apocalyptic number.

It is an amenable number.

52315985 is a deficient number, since it is larger than the sum of its proper divisors (10463203).

52315985 is a wasteful number, since it uses less digits than its factorization.

52315985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10463202.

The product of its digits is 54000, while the sum is 38.

The square root of 52315985 is about 7232.9789851762. The cubic root of 52315985 is about 374.0056263273.

The spelling of 52315985 in words is "fifty-two million, three hundred fifteen thousand, nine hundred eighty-five".