243833502025 has 27 divisors (see below), whose sum is σ = 307581396213. Its totient is φ = 191750474400.

The previous prime is 243833502019. The next prime is 243833502041. The reversal of 243833502025 is 520205338342.

The square root of 243833502025 is 493795.

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 112314127689 + 131519374336 = 335133^2 + 362656^2 .

It is not a de Polignac number, because 243833502025 - 2⁵ = 243833501993 is a prime.

It is a Duffinian number.

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, 150606666 + ... + 150608284.

Almost surely, 2^243833502025 is an apocalyptic number.

243833502025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

243833502025 is the 493795-th square number.

243833502025 is the 246898-th centered octagonal number.

It is an amenable number.

243833502025 is a deficient number, since it is larger than the sum of its proper divisors (63747894188).

243833502025 is an frugal number, since it uses more digits than its factorization.

243833502025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 243833502025 in words is "two hundred forty-three billion, eight hundred thirty-three million, five hundred two thousand, twenty-five".