285055361 has 4 divisors (see below), whose sum is σ = 286488000. Its totient is φ = 283622724.

The previous prime is 285055357. The next prime is 285055391. The reversal of 285055361 is 163550582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 285055361 - 2² = 285055357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285055301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716021 + ... + 716418.

It is an arithmetic number, because the mean of its divisors is an integer number (71622000).

Almost surely, 2^285055361 is an apocalyptic number.

It is an amenable number.

285055361 is a deficient number, since it is larger than the sum of its proper divisors (1432639).

285055361 is a wasteful number, since it uses less digits than its factorization.

285055361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432638.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 285055361 is about 16883.5825878277. The cubic root of 285055361 is about 658.1270445402.

The spelling of 285055361 in words is "two hundred eighty-five million, fifty-five thousand, three hundred sixty-one".