243125444525 has 48 divisors (see below), whose sum is σ = 316941428736. Its totient is φ = 184766400000.

The previous prime is 243125444473. The next prime is 243125444539. The reversal of 243125444525 is 525444521342.

It is not a de Polignac number, because 243125444525 - 2¹⁸ = 243125182381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24625340 + ... + 24635210.

It is an arithmetic number, because the mean of its divisors is an integer number (6602946432).

Almost surely, 2^243125444525 is an apocalyptic number.

243125444525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243125444525 is a deficient number, since it is larger than the sum of its proper divisors (73815984211).

243125444525 is a wasteful number, since it uses less digits than its factorization.

243125444525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10494 (or 10489 counting only the distinct ones).

The product of its digits is 768000, while the sum is 41.

Adding to 243125444525 its reverse (525444521342), we get a palindrome (768569965867).

The spelling of 243125444525 in words is "two hundred forty-three billion, one hundred twenty-five million, four hundred forty-four thousand, five hundred twenty-five".