285465655 has 4 divisors (see below), whose sum is σ = 342558792. Its totient is φ = 228372520.

The previous prime is 285465641. The next prime is 285465689. The reversal of 285465655 is 556564582.

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

It is a de Polignac number, because none of the positive numbers 2^k-285465655 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 3 ways as a sum of consecutive naturals, for example, 28546561 + ... + 28546570.

It is an arithmetic number, because the mean of its divisors is an integer number (85639698).

Almost surely, 2^285465655 is an apocalyptic number.

285465655 is a deficient number, since it is larger than the sum of its proper divisors (57093137).

285465655 is an equidigital number, since it uses as much as digits as its factorization.

285465655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57093136.

The product of its digits is 1440000, while the sum is 46.

The square root of 285465655 is about 16895.7288981565. The cubic root of 285465655 is about 658.4426512193.

The spelling of 285465655 in words is "two hundred eighty-five million, four hundred sixty-five thousand, six hundred fifty-five".