285475125 has 64 divisors (see below), whose sum is σ = 528353280. Its totient is φ = 135936000.

The previous prime is 285475117. The next prime is 285475129. The reversal of 285475125 is 521574582.

It is not a de Polignac number, because 285475125 - 2³ = 285475117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285475129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 150181 + ... + 152069.

It is an arithmetic number, because the mean of its divisors is an integer number (8255520).

Almost surely, 2^285475125 is an apocalyptic number.

285475125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285475125 is a deficient number, since it is larger than the sum of its proper divisors (242878155).

285475125 is a wasteful number, since it uses less digits than its factorization.

285475125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951 (or 1941 counting only the distinct ones).

The product of its digits is 112000, while the sum is 39.

The square root of 285475125 is about 16896.0091441737. The cubic root of 285475125 is about 658.4499321687.

The spelling of 285475125 in words is "two hundred eighty-five million, four hundred seventy-five thousand, one hundred twenty-five".