630225859 has 4 divisors (see below), whose sum is σ = 631138600. Its totient is φ = 629313120.

The previous prime is 630225857. The next prime is 630225881. The reversal of 630225859 is 958522036.

630225859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 630225859 - 2¹ = 630225857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630225857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455334 + ... + 456715.

It is an arithmetic number, because the mean of its divisors is an integer number (157784650).

Almost surely, 2^630225859 is an apocalyptic number.

630225859 is a deficient number, since it is larger than the sum of its proper divisors (912741).

630225859 is an equidigital number, since it uses as much as digits as its factorization.

630225859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912740.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 630225859 is about 25104.2996118195. The cubic root of 630225859 is about 857.3643206014.

The spelling of 630225859 in words is "six hundred thirty million, two hundred twenty-five thousand, eight hundred fifty-nine".