285197325 has 24 divisors (see below), whose sum is σ = 538888128. Its totient is φ = 130375680.

The previous prime is 285197317. The next prime is 285197357. The reversal of 285197325 is 523791582.

It is a happy number.

It is not a de Polignac number, because 285197325 - 2³ = 285197317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271092 + ... + 272141.

It is an arithmetic number, because the mean of its divisors is an integer number (22453672).

Almost surely, 2^285197325 is an apocalyptic number.

285197325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285197325 is a deficient number, since it is larger than the sum of its proper divisors (253690803).

285197325 is a wasteful number, since it uses less digits than its factorization.

285197325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543253 (or 543248 counting only the distinct ones).

The product of its digits is 151200, while the sum is 42.

The square root of 285197325 is about 16887.7862670037. The cubic root of 285197325 is about 658.2362804463.

The spelling of 285197325 in words is "two hundred eighty-five million, one hundred ninety-seven thousand, three hundred twenty-five".