320432055 has 32 divisors (see below), whose sum is σ = 540864000. Its totient is φ = 161546112.

The previous prime is 320432051. The next prime is 320432059. The reversal of 320432055 is 550234023.

It is an interprime number because it is at equal distance from previous prime (320432051) and next prime (320432059).

It is not a de Polignac number, because 320432055 - 2² = 320432051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320432051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169777 + ... + 171653.

It is an arithmetic number, because the mean of its divisors is an integer number (16902000).

Almost surely, 2^320432055 is an apocalyptic number.

320432055 is a deficient number, since it is larger than the sum of its proper divisors (220431945).

320432055 is a wasteful number, since it uses less digits than its factorization.

320432055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 320432055 is about 17900.6160508514. The cubic root of 320432055 is about 684.2980750885.

Adding to 320432055 its reverse (550234023), we get a palindrome (870666078).

The spelling of 320432055 in words is "three hundred twenty million, four hundred thirty-two thousand, fifty-five".