243545552 has 10 divisors (see below), whose sum is σ = 471869538. Its totient is φ = 121772768.

The previous prime is 243545543. The next prime is 243545557. The reversal of 243545552 is 255545342.

It can be written as a sum of positive squares in only one way, i.e., 214212496 + 29333056 = 14636^2 + 5416^2 .

It is a super-3 number, since 3×243545552³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243545557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7610783 + ... + 7610814.

Almost surely, 2^243545552 is an apocalyptic number.

It is an amenable number.

243545552 is a deficient number, since it is larger than the sum of its proper divisors (228323986).

243545552 is a wasteful number, since it uses less digits than its factorization.

243545552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15221605 (or 15221599 counting only the distinct ones).

The product of its digits is 120000, while the sum is 35.

The square root of 243545552 is about 15605.9460462991. The cubic root of 243545552 is about 624.4917912435.

The spelling of 243545552 in words is "two hundred forty-three million, five hundred forty-five thousand, five hundred fifty-two".