671355625 has 20 divisors (see below), whose sum is σ = 875419776. Its totient is φ = 513722000.

The previous prime is 671355577. The next prime is 671355637. The reversal of 671355625 is 526553176.

It is not a de Polignac number, because 671355625 - 2⁷ = 671355497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8977 + ... + 37726.

Almost surely, 2^671355625 is an apocalyptic number.

It is an amenable number.

671355625 is a deficient number, since it is larger than the sum of its proper divisors (204064151).

671355625 is an equidigital number, since it uses as much as digits as its factorization.

671355625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46746 (or 46731 counting only the distinct ones).

The product of its digits is 189000, while the sum is 40.

The square root of 671355625 is about 25910.5311601287. The cubic root of 671355625 is about 875.6237729041.

The spelling of 671355625 in words is "six hundred seventy-one million, three hundred fifty-five thousand, six hundred twenty-five".