243423251025 has 24 divisors (see below), whose sum is σ = 407554212480. Its totient is φ = 128182367040.

The previous prime is 243423251021. The next prime is 243423251033. The reversal of 243423251025 is 520152324342.

It is not a de Polignac number, because 243423251025 - 2² = 243423251021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243423251021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20536122 + ... + 20547971.

It is an arithmetic number, because the mean of its divisors is an integer number (16981425520).

Almost surely, 2^243423251025 is an apocalyptic number.

243423251025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243423251025 is a deficient number, since it is larger than the sum of its proper divisors (164130961455).

243423251025 is a wasteful number, since it uses less digits than its factorization.

243423251025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41084185 (or 41084180 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 243423251025 its reverse (520152324342), we get a palindrome (763575575367).

The spelling of 243423251025 in words is "two hundred forty-three billion, four hundred twenty-three million, two hundred fifty-one thousand, twenty-five".