285399255 has 8 divisors (see below), whose sum is σ = 456638832. Its totient is φ = 152212928.

The previous prime is 285399239. The next prime is 285399263. The reversal of 285399255 is 552993582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 285399255 - 2⁴ = 285399239 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 9513294 + ... + 9513323.

It is an arithmetic number, because the mean of its divisors is an integer number (57079854).

Almost surely, 2^285399255 is an apocalyptic number.

285399255 is a deficient number, since it is larger than the sum of its proper divisors (171239577).

285399255 is a wasteful number, since it uses less digits than its factorization.

285399255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19026625.

The product of its digits is 972000, while the sum is 48.

The square root of 285399255 is about 16893.7637902274. The cubic root of 285399255 is about 658.3915954775.

The spelling of 285399255 in words is "two hundred eighty-five million, three hundred ninety-nine thousand, two hundred fifty-five".