285055 has 8 divisors (see below), whose sum is σ = 349632. Its totient is φ = 223008.

The previous prime is 285049. The next prime is 285071. The reversal of 285055 is 550582.

285055 = T₂₆ + T₂₇ + ... + T₁₁₉.

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 285055 - 2⁵ = 285023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372 + ... + 841.

It is an arithmetic number, because the mean of its divisors is an integer number (43704).

2²⁸⁵⁰⁵⁵ is an apocalyptic number.

285055 is a deficient number, since it is larger than the sum of its proper divisors (64577).

285055 is a wasteful number, since it uses less digits than its factorization.

285055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 285055 is about 533.9054223362. The cubic root of 285055 is about 65.8126766718.

The spelling of 285055 in words is "two hundred eighty-five thousand, fifty-five".