252005285 has 24 divisors (see below), whose sum is σ = 353206656. Its totient is φ = 172102560.

The previous prime is 252005279. The next prime is 252005287. The reversal of 252005285 is 582500252.

252005285 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 252005285 - 2²⁰ = 250956709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252005287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62480 + ... + 66390.

It is an arithmetic number, because the mean of its divisors is an integer number (14716944).

Almost surely, 2^252005285 is an apocalyptic number.

It is an amenable number.

252005285 is a deficient number, since it is larger than the sum of its proper divisors (101201371).

252005285 is a wasteful number, since it uses less digits than its factorization.

252005285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193 (or 4186 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 252005285 is about 15874.6743273681. The cubic root of 252005285 is about 631.6403753380.

The spelling of 252005285 in words is "two hundred fifty-two million, five thousand, two hundred eighty-five".