670642225 has 24 divisors (see below), whose sum is σ = 908379360. Its totient is φ = 487104000.

The previous prime is 670642223. The next prime is 670642261. The reversal of 670642225 is 522246076.

670642225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 670642225 - 2¹ = 670642223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670642223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354081 + ... + 355969.

It is an arithmetic number, because the mean of its divisors is an integer number (37849140).

Almost surely, 2^670642225 is an apocalyptic number.

It is an amenable number.

670642225 is a deficient number, since it is larger than the sum of its proper divisors (237737135).

670642225 is a wasteful number, since it uses less digits than its factorization.

670642225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201 (or 3196 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 670642225 is about 25896.7608978420. The cubic root of 670642225 is about 875.3135094260.

The spelling of 670642225 in words is "six hundred seventy million, six hundred forty-two thousand, two hundred twenty-five".