243225342525 has 48 divisors (see below), whose sum is σ = 438801789888. Its totient is φ = 117897408000.

The previous prime is 243225342509. The next prime is 243225342557. The reversal of 243225342525 is 525243522342.

It is not a de Polignac number, because 243225342525 - 2⁴ = 243225342509 is a prime.

It is a super-3 number, since 3×243225342525³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

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, 3394065 + ... + 3464985.

It is an arithmetic number, because the mean of its divisors is an integer number (9141703956).

Almost surely, 2^243225342525 is an apocalyptic number.

243225342525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243225342525 is a deficient number, since it is larger than the sum of its proper divisors (195576447363).

243225342525 is a wasteful number, since it uses less digits than its factorization.

243225342525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75102 (or 75097 counting only the distinct ones).

The product of its digits is 576000, while the sum is 39.

Adding to 243225342525 its reverse (525243522342), we get a palindrome (768468864867).

The spelling of 243225342525 in words is "two hundred forty-three billion, two hundred twenty-five million, three hundred forty-two thousand, five hundred twenty-five".