285333125 has 80 divisors (see below), whose sum is σ = 457353600. Its totient is φ = 177870000.

The previous prime is 285333121. The next prime is 285333133. The reversal of 285333125 is 521333582.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 285333125 - 2² = 285333121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285333091 and 285333100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285333121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25939370 + ... + 25939380.

It is an arithmetic number, because the mean of its divisors is an integer number (5716920).

Almost surely, 2^285333125 is an apocalyptic number.

285333125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285333125 is a deficient number, since it is larger than the sum of its proper divisors (172020475).

285333125 is an frugal number, since it uses more digits than its factorization.

285333125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 23 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 285333125 is about 16891.8064457298. The cubic root of 285333125 is about 658.3407394705.

The spelling of 285333125 in words is "two hundred eighty-five million, three hundred thirty-three thousand, one hundred twenty-five".