52815625 has 12 divisors (see below), whose sum is σ = 66019212. Its totient is φ = 42250000.

The previous prime is 52815601. The next prime is 52815629. The reversal of 52815625 is 52651825.

52815625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 24810361 + 28005264 = 4981^2 + 5292^2 .

It is not a de Polignac number, because 52815625 - 2²³ = 44427017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52815629) 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 11 ways as a sum of consecutive naturals, for example, 5326 + ... + 11575.

It is an arithmetic number, because the mean of its divisors is an integer number (5501601).

Almost surely, 2^52815625 is an apocalyptic number.

It is an amenable number.

52815625 is a deficient number, since it is larger than the sum of its proper divisors (13203587).

52815625 is an frugal number, since it uses more digits than its factorization.

52815625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16926 (or 16906 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

The square root of 52815625 is about 7267.4359302301. The cubic root of 52815625 is about 375.1924937654.

The spelling of 52815625 in words is "fifty-two million, eight hundred fifteen thousand, six hundred twenty-five".