285253245 has 80 divisors (see below), whose sum is σ = 540283392. Its totient is φ = 143700480.

The previous prime is 285253223. The next prime is 285253253. The reversal of 285253245 is 542352582.

It is a happy number.

285253245 is a `hidden beast` number, since 2 + 85 + 2 + 532 + 45 = 666.

It is not a de Polignac number, because 285253245 - 2⁷ = 285253117 is a prime.

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 79 ways as a sum of consecutive naturals, for example, 1052460 + ... + 1052730.

Almost surely, 2^285253245 is an apocalyptic number.

It is an amenable number.

285253245 is a deficient number, since it is larger than the sum of its proper divisors (255030147).

285253245 is a wasteful number, since it uses less digits than its factorization.

285253245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 415 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 285253245 is about 16889.4418202616. The cubic root of 285253245 is about 658.2792988107.

The spelling of 285253245 in words is "two hundred eighty-five million, two hundred fifty-three thousand, two hundred forty-five".