320055065 has 32 divisors (see below), whose sum is σ = 426539520. Its totient is φ = 228614400.

The previous prime is 320055053. The next prime is 320055077. The reversal of 320055065 is 560550023.

It is an interprime number because it is at equal distance from previous prime (320055053) and next prime (320055077).

It is not a de Polignac number, because 320055065 - 2⁸ = 320054809 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1180880 + ... + 1181150.

It is an arithmetic number, because the mean of its divisors is an integer number (13329360).

Almost surely, 2^320055065 is an apocalyptic number.

It is an amenable number.

320055065 is a deficient number, since it is larger than the sum of its proper divisors (106484455).

320055065 is a wasteful number, since it uses less digits than its factorization.

320055065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 320055065 is about 17890.0828673318. The cubic root of 320055065 is about 684.0296096811.

The spelling of 320055065 in words is "three hundred twenty million, fifty-five thousand, sixty-five".