671043025 has 12 divisors (see below), whose sum is σ = 832660992. Its totient is φ = 536468240.

The previous prime is 671042987. The next prime is 671043047. The reversal of 671043025 is 520340176.

It is a de Polignac number, because none of the positive numbers 2^k-671043025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671042984 and 671043002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31824 + ... + 48526.

It is an arithmetic number, because the mean of its divisors is an integer number (69388416).

Almost surely, 2^671043025 is an apocalyptic number.

It is an amenable number.

671043025 is a deficient number, since it is larger than the sum of its proper divisors (161617967).

671043025 is a wasteful number, since it uses less digits than its factorization.

671043025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18320 (or 18315 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 671043025 is about 25904.4981615163. The cubic root of 671043025 is about 875.4878476826.

The spelling of 671043025 in words is "six hundred seventy-one million, forty-three thousand, twenty-five".