243021352552 has 32 divisors (see below), whose sum is σ = 503898583680. Its totient is φ = 108951039360.

The previous prime is 243021352529. The next prime is 243021352559. The reversal of 243021352552 is 255253120342.

It is not an unprimeable number, because it can be changed into a prime (243021352559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18908688 + ... + 18921535.

It is an arithmetic number, because the mean of its divisors is an integer number (15746830740).

Almost surely, 2^243021352552 is an apocalyptic number.

243021352552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243021352552 is an abundant number, since it is smaller than the sum of its proper divisors (260877231128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243021352552 is a wasteful number, since it uses less digits than its factorization.

243021352552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37830313 (or 37830309 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 243021352552 its reverse (255253120342), we get a palindrome (498274472894).

The spelling of 243021352552 in words is "two hundred forty-three billion, twenty-one million, three hundred fifty-two thousand, five hundred fifty-two".