285248265 has 16 divisors (see below), whose sum is σ = 456732096. Its totient is φ = 152020800.

The previous prime is 285248239. The next prime is 285248269. The reversal of 285248265 is 562842582.

It is not a de Polignac number, because 285248265 - 2⁵ = 285248233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285248269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16755 + ... + 29175.

It is an arithmetic number, because the mean of its divisors is an integer number (28545756).

Almost surely, 2^285248265 is an apocalyptic number.

It is an amenable number.

285248265 is a deficient number, since it is larger than the sum of its proper divisors (171483831).

285248265 is a wasteful number, since it uses less digits than its factorization.

285248265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13960.

The product of its digits is 307200, while the sum is 42.

The square root of 285248265 is about 16889.2943902343. The cubic root of 285248265 is about 658.2754680041.

The spelling of 285248265 in words is "two hundred eighty-five million, two hundred forty-eight thousand, two hundred sixty-five".