4423723660225 has 27 divisors (see below), whose sum is σ = 5638174665627. Its totient is φ = 3443027978880.

The previous prime is 4423723660201. The next prime is 4423723660231. The reversal of 4423723660225 is 5220663273244.

The square root of 4423723660225 is 2103265.

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

It can be written as a sum of positive squares in 13 ways, for example, as 656801647489 + 3766922012736 = 810433^2 + 1940856^2 .

It is not a de Polignac number, because 4423723660225 - 2⁵ = 4423723660193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 389098341 + ... + 389109709.

Almost surely, 2^{4423723660225} is an apocalyptic number.

4423723660225 is the 2103265-th square number.

4423723660225 is the 1051633-rd centered octagonal number.

It is an amenable number.

4423723660225 is a deficient number, since it is larger than the sum of its proper divisors (1214451005402).

4423723660225 is an frugal number, since it uses more digits than its factorization.

4423723660225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22822 (or 11411 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 46.

The spelling of 4423723660225 in words is "four trillion, four hundred twenty-three billion, seven hundred twenty-three million, six hundred sixty thousand, two hundred twenty-five".