671332055 has 4 divisors (see below), whose sum is σ = 805598472. Its totient is φ = 537065640.

The previous prime is 671332043. The next prime is 671332087. The reversal of 671332055 is 550233176.

671332055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-671332055 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, 67133201 + ... + 67133210.

It is an arithmetic number, because the mean of its divisors is an integer number (201399618).

Almost surely, 2^671332055 is an apocalyptic number.

671332055 is a deficient number, since it is larger than the sum of its proper divisors (134266417).

671332055 is a wasteful number, since it uses less digits than its factorization.

671332055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134266416.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 671332055 is about 25910.0763217710. The cubic root of 671332055 is about 875.6135256307.

The spelling of 671332055 in words is "six hundred seventy-one million, three hundred thirty-two thousand, fifty-five".