243125453225 has 12 divisors (see below), whose sum is σ = 302297032704. Its totient is φ = 193970381520.

The previous prime is 243125453213. The next prime is 243125453227. The reversal of 243125453225 is 522354521342.

It is not a de Polignac number, because 243125453225 - 2⁶ = 243125453161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243125453227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13240169 + ... + 13258518.

It is an arithmetic number, because the mean of its divisors is an integer number (25191419392).

Almost surely, 2^243125453225 is an apocalyptic number.

243125453225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243125453225 is a deficient number, since it is larger than the sum of its proper divisors (59171579479).

243125453225 is a wasteful number, since it uses less digits than its factorization.

243125453225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26499064 (or 26499059 counting only the distinct ones).

The product of its digits is 288000, while the sum is 38.

Adding to 243125453225 its reverse (522354521342), we get a palindrome (765479974567).

The spelling of 243125453225 in words is "two hundred forty-three billion, one hundred twenty-five million, four hundred fifty-three thousand, two hundred twenty-five".