6845080225 has 9 divisors (see below), whose sum is σ = 8488412467. Its totient is φ = 5475733240.

The previous prime is 6845080219. The next prime is 6845080261. The reversal of 6845080225 is 5220805486.

The square root of 6845080225 is 82735.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2464228881 + 4380851344 = 49641^2 + 66188^2 .

It is not a de Polignac number, because 6845080225 - 2⁷ = 6845080097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 405402 + ... + 421948.

Almost surely, 2^6845080225 is an apocalyptic number.

6845080225 is the 82735-th square number.

6845080225 is the 41368-th centered octagonal number.

It is an amenable number.

6845080225 is a deficient number, since it is larger than the sum of its proper divisors (1643332242).

6845080225 is an frugal number, since it uses more digits than its factorization.

6845080225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33104 (or 16552 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The cubic root of 6845080225 is about 1898.7138317658.

The spelling of 6845080225 in words is "six billion, eight hundred forty-five million, eighty thousand, two hundred twenty-five".