243441100025 has 24 divisors (see below), whose sum is σ = 317846829120. Its totient is φ = 184449234240.

The previous prime is 243441100013. The next prime is 243441100027. The reversal of 243441100025 is 520001144342.

It is not a de Polignac number, because 243441100025 - 2¹² = 243441095929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243441099967 and 243441100003.

It is not an unprimeable number, because it can be changed into a prime (243441100027) 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, 1605644 + ... + 1750706.

It is an arithmetic number, because the mean of its divisors is an integer number (13243617880).

Almost surely, 2^243441100025 is an apocalyptic number.

243441100025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243441100025 is a deficient number, since it is larger than the sum of its proper divisors (74405729095).

243441100025 is a wasteful number, since it uses less digits than its factorization.

243441100025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148625 (or 148620 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 243441100025 its reverse (520001144342), we get a palindrome (763442244367).

The spelling of 243441100025 in words is "two hundred forty-three billion, four hundred forty-one million, one hundred thousand, twenty-five".