285255365 has 4 divisors (see below), whose sum is σ = 342306444. Its totient is φ = 228204288.

The previous prime is 285255353. The next prime is 285255389. The reversal of 285255365 is 563552582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 179720836 + 105534529 = 13406^2 + 10273^2 .

It is a cyclic number.

It is not a de Polignac number, because 285255365 - 2⁴ = 285255349 is a prime.

It is a super-2 number, since 2×285255365² = 162741246522566450, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 28525532 + ... + 28525541.

It is an arithmetic number, because the mean of its divisors is an integer number (85576611).

Almost surely, 2^285255365 is an apocalyptic number.

It is an amenable number.

285255365 is a deficient number, since it is larger than the sum of its proper divisors (57051079).

285255365 is an equidigital number, since it uses as much as digits as its factorization.

285255365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57051078.

The product of its digits is 360000, while the sum is 41.

The square root of 285255365 is about 16889.5045812481. The cubic root of 285255365 is about 658.2809295822.

The spelling of 285255365 in words is "two hundred eighty-five million, two hundred fifty-five thousand, three hundred sixty-five".