285575253 has 8 divisors (see below), whose sum is σ = 381984768. Its totient is φ = 189774624.

The previous prime is 285575237. The next prime is 285575273. The reversal of 285575253 is 352575582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 285575253 - 2⁴ = 285575237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285575273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151125 + ... + 153002.

It is an arithmetic number, because the mean of its divisors is an integer number (47748096).

Almost surely, 2^285575253 is an apocalyptic number.

It is an amenable number.

285575253 is a deficient number, since it is larger than the sum of its proper divisors (96409515).

285575253 is a wasteful number, since it uses less digits than its factorization.

285575253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304443.

The product of its digits is 420000, while the sum is 42.

The square root of 285575253 is about 16898.9719509797. The cubic root of 285575253 is about 658.5269050961.

The spelling of 285575253 in words is "two hundred eighty-five million, five hundred seventy-five thousand, two hundred fifty-three".