243073650625 has 135 divisors (see below), whose sum is σ = 346482654903. Its totient is φ = 170389440000.

The previous prime is 243073650613. The next prime is 243073650689. The reversal of 243073650625 is 526056370342.

The square root of 243073650625 is 493025.

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

It can be written as a sum of positive squares in 67 ways, for example, as 986049 + 243072664576 = 993^2 + 493024^2 .

It is not a de Polignac number, because 243073650625 - 2¹¹ = 243073648577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 5928625605 + ... + 5928625645.

Almost surely, 2^243073650625 is an apocalyptic number.

243073650625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

243073650625 is the 493025-th square number.

243073650625 is the 246513-rd centered octagonal number.

It is an amenable number.

243073650625 is a deficient number, since it is larger than the sum of its proper divisors (103409004278).

243073650625 is an frugal number, since it uses more digits than its factorization.

243073650625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 43.

The spelling of 243073650625 in words is "two hundred forty-three billion, seventy-three million, six hundred fifty thousand, six hundred twenty-five".