243423005025 has 48 divisors (see below), whose sum is σ = 419616000000. Its totient is φ = 124361717760.

The previous prime is 243423005017. The next prime is 243423005039. The reversal of 243423005025 is 520500324342.

It is not a de Polignac number, because 243423005025 - 2³ = 243423005017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243423004983 and 243423005001.

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, 164400 + ... + 716849.

It is an arithmetic number, because the mean of its divisors is an integer number (8742000000).

Almost surely, 2^243423005025 is an apocalyptic number.

243423005025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243423005025 is a deficient number, since it is larger than the sum of its proper divisors (176192994975).

243423005025 is a wasteful number, since it uses less digits than its factorization.

243423005025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881418 (or 881413 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 243423005025 its reverse (520500324342), we get a palindrome (763923329367).

The spelling of 243423005025 in words is "two hundred forty-three billion, four hundred twenty-three million, five thousand, twenty-five".