243353025 has 48 divisors (see below), whose sum is σ = 448989120. Its totient is φ = 129225600.

The previous prime is 243353017. The next prime is 243353027. The reversal of 243353025 is 520353342.

243353025 is a `hidden beast` number, since 24 + 335 + 302 + 5 = 666.

It is not a de Polignac number, because 243353025 - 2³ = 243353017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 243353025.

It is not an unprimeable number, because it can be changed into a prime (243353027) 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 47 ways as a sum of consecutive naturals, for example, 189034 + ... + 190316.

It is an arithmetic number, because the mean of its divisors is an integer number (9353940).

Almost surely, 2^243353025 is an apocalyptic number.

243353025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243353025 is a deficient number, since it is larger than the sum of its proper divisors (205636095).

243353025 is a wasteful number, since it uses less digits than its factorization.

243353025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 243353025 is about 15599.7764407058. The cubic root of 243353025 is about 624.3271906507.

The spelling of 243353025 in words is "two hundred forty-three million, three hundred fifty-three thousand, twenty-five".