52505525 has 6 divisors (see below), whose sum is σ = 65106882. Its totient is φ = 42004400.

The previous prime is 52505513. The next prime is 52505587. The reversal of 52505525 is 52550525.

It is a happy number.

52505525 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 3 ways, for example, as 4036081 + 48469444 = 2009^2 + 6962^2 .

It is not a de Polignac number, because 52505525 - 2¹⁴ = 52489141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1050086 + ... + 1050135.

It is an arithmetic number, because the mean of its divisors is an integer number (10851147).

Almost surely, 2^52505525 is an apocalyptic number.

It is an amenable number.

52505525 is a deficient number, since it is larger than the sum of its proper divisors (12601357).

52505525 is a wasteful number, since it uses less digits than its factorization.

52505525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100231 (or 2100226 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 52505525 is about 7246.0696242860. The cubic root of 52505525 is about 374.4567541446.

The spelling of 52505525 in words is "fifty-two million, five hundred five thousand, five hundred twenty-five".