331500055 has 8 divisors (see below), whose sum is σ = 404542800. Its totient is φ = 260704896.

The previous prime is 331500023. The next prime is 331500067. The reversal of 331500055 is 550005133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331500055 - 2⁵ = 331500023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331499999 and 331500035.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561570 + ... + 562159.

It is an arithmetic number, because the mean of its divisors is an integer number (50567850).

Almost surely, 2^331500055 is an apocalyptic number.

331500055 is a deficient number, since it is larger than the sum of its proper divisors (73042745).

331500055 is a wasteful number, since it uses less digits than its factorization.

331500055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123793.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 331500055 is about 18207.1429664294. The cubic root of 331500055 is about 692.0878126783.

Adding to 331500055 its reverse (550005133), we get a palindrome (881505188).

The spelling of 331500055 in words is "three hundred thirty-one million, five hundred thousand, fifty-five".