198314355625 has 45 divisors (see below), whose sum is σ = 253868265057. Its totient is φ = 154866222000.

The previous prime is 198314355607. The next prime is 198314355641. The reversal of 198314355625 is 526553413891.

The square root of 198314355625 is 445325.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15547845481 + 182766510144 = 124691^2 + 427512^2 .

It is not a de Polignac number, because 198314355625 - 2¹⁷ = 198314224553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 523256686 + ... + 523257064.

Almost surely, 2^198314355625 is an apocalyptic number.

198314355625 is the 445325-th square number.

198314355625 is the 222663-rd centered octagonal number.

It is an amenable number.

198314355625 is a deficient number, since it is larger than the sum of its proper divisors (55553909432).

198314355625 is an frugal number, since it uses more digits than its factorization.

198314355625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 431 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 52.

The spelling of 198314355625 in words is "one hundred ninety-eight billion, three hundred fourteen million, three hundred fifty-five thousand, six hundred twenty-five".