243552425 has 6 divisors (see below), whose sum is σ = 302005038. Its totient is φ = 194841920.

The previous prime is 243552401. The next prime is 243552427. The reversal of 243552425 is 524255342.

It can be written as a sum of positive squares in 3 ways, for example, as 3519376 + 240033049 = 1876^2 + 15493^2 .

It is not a de Polignac number, because 243552425 - 2¹⁶ = 243486889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243552391 and 243552400.

It is not an unprimeable number, because it can be changed into a prime (243552427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4871024 + ... + 4871073.

It is an arithmetic number, because the mean of its divisors is an integer number (50334173).

Almost surely, 2^243552425 is an apocalyptic number.

243552425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243552425 is a deficient number, since it is larger than the sum of its proper divisors (58452613).

243552425 is an equidigital number, since it uses as much as digits as its factorization.

243552425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9742107 (or 9742102 counting only the distinct ones).

The product of its digits is 48000, while the sum is 32.

The square root of 243552425 is about 15606.1662492747. The cubic root of 243552425 is about 624.4976656979.

The spelling of 243552425 in words is "two hundred forty-three million, five hundred fifty-two thousand, four hundred twenty-five".