243503025 has 12 divisors (see below), whose sum is σ = 402591792. Its totient is φ = 129868240.

The previous prime is 243503017. The next prime is 243503063. The reversal of 243503025 is 520305342.

It is not a de Polignac number, because 243503025 - 2³ = 243503017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243502986 and 243503004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1623279 + ... + 1623428.

It is an arithmetic number, because the mean of its divisors is an integer number (33549316).

Almost surely, 2^243503025 is an apocalyptic number.

243503025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243503025 is a deficient number, since it is larger than the sum of its proper divisors (159088767).

243503025 is a wasteful number, since it uses less digits than its factorization.

243503025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246720 (or 3246715 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 243503025 is about 15604.5834612783. The cubic root of 243503025 is about 624.4554403321.

Adding to 243503025 its reverse (520305342), we get a palindrome (763808367).

The spelling of 243503025 in words is "two hundred forty-three million, five hundred three thousand, twenty-five".