672342601225 has 9 divisors (see below), whose sum is σ = 833709909333. Its totient is φ = 537870801120.

The previous prime is 672342601223. The next prime is 672342601297. The reversal of 672342601225 is 522106243276.

It is a happy number.

The square root of 672342601225 is 819965.

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

It can be written as a sum of positive squares in 4 ways, for example, as 278907565689 + 393435035536 = 528117^2 + 627244^2 .

It is not a de Polignac number, because 672342601225 - 2¹ = 672342601223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672342601223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4017829 + ... + 4181821.

Almost surely, 2^672342601225 is an apocalyptic number.

672342601225 is the 819965-th square number.

672342601225 is the 409983-rd centered octagonal number.

It is an amenable number.

672342601225 is a deficient number, since it is larger than the sum of its proper divisors (161367308108).

672342601225 is an frugal number, since it uses more digits than its factorization.

672342601225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327996 (or 163998 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 672342601225 in words is "six hundred seventy-two billion, three hundred forty-two million, six hundred one thousand, two hundred twenty-five".