52505268 has 12 divisors (see below), whose sum is σ = 122512320. Its totient is φ = 17501752.

The previous prime is 52505263. The next prime is 52505311. The reversal of 52505268 is 86250525.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2187708 + ... + 2187731.

It is an arithmetic number, because the mean of its divisors is an integer number (10209360).

Almost surely, 2^52505268 is an apocalyptic number.

It is an amenable number.

52505268 is an abundant number, since it is smaller than the sum of its proper divisors (70007052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52505268 is a wasteful number, since it uses less digits than its factorization.

52505268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375446 (or 4375444 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 52505268 is about 7246.0518905125. The cubic root of 52505268 is about 374.4561431896.

The spelling of 52505268 in words is "fifty-two million, five hundred five thousand, two hundred sixty-eight".