671510056 has 32 divisors (see below), whose sum is σ = 1469571840. Its totient is φ = 281665728.

The previous prime is 671510039. The next prime is 671510101. The reversal of 671510056 is 650015176.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124935 + ... + 130198.

It is an arithmetic number, because the mean of its divisors is an integer number (45924120).

Almost surely, 2^671510056 is an apocalyptic number.

It is an amenable number.

671510056 is an abundant number, since it is smaller than the sum of its proper divisors (798061784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671510056 is a wasteful number, since it uses less digits than its factorization.

671510056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255193 (or 255189 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 671510056 is about 25913.5110704821. The cubic root of 671510056 is about 875.6909072627.

The spelling of 671510056 in words is "six hundred seventy-one million, five hundred ten thousand, fifty-six".