52505523 has 32 divisors (see below), whose sum is σ = 89254400. Its totient is φ = 29883168.

The previous prime is 52505513. The next prime is 52505587. The reversal of 52505523 is 32550525.

52505523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52505523 - 2⁴ = 52505507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52505513) 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 31 ways as a sum of consecutive naturals, for example, 71265 + ... + 71997.

It is an arithmetic number, because the mean of its divisors is an integer number (2789200).

Almost surely, 2^52505523 is an apocalyptic number.

52505523 is a deficient number, since it is larger than the sum of its proper divisors (36748877).

52505523 is a wasteful number, since it uses less digits than its factorization.

52505523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 52505523 is about 7246.0694862801. The cubic root of 52505523 is about 374.4567493901.

The spelling of 52505523 in words is "fifty-two million, five hundred five thousand, five hundred twenty-three".