243232450506625 has 16 divisors (see below), whose sum is σ = 303554660919120. Its totient is φ = 194585599708800.

The previous prime is 243232450506613. The next prime is 243232450506653. The reversal of 243232450506625 is 526605054232342.

It can be written as a sum of positive squares in 8 ways, for example, as 169867195622721 + 73365254883904 = 13033311^2 + 8565352^2 .

It is not a de Polignac number, because 243232450506625 - 2⁵ = 243232450506593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81073831 + ... + 84020419.

It is an arithmetic number, because the mean of its divisors is an integer number (18972166307445).

Almost surely, 2^{243232450506625} is an apocalyptic number.

243232450506625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243232450506625 is a deficient number, since it is larger than the sum of its proper divisors (60322210412495).

243232450506625 is an equidigital number, since it uses as much as digits as its factorization.

243232450506625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606981 (or 3606971 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 49.

The spelling of 243232450506625 in words is "two hundred forty-three trillion, two hundred thirty-two billion, four hundred fifty million, five hundred six thousand, six hundred twenty-five".