243234525552 has 80 divisors (see below), whose sum is σ = 648582297600. Its totient is φ = 78490342656.

The previous prime is 243234525517. The next prime is 243234525577. The reversal of 243234525552 is 255525432342.

It is a congruent number.

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, 9313 + ... + 697535.

It is an arithmetic number, because the mean of its divisors is an integer number (8107278720).

Almost surely, 2^243234525552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243234525552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324291148800).

243234525552 is an abundant number, since it is smaller than the sum of its proper divisors (405347772048).

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

243234525552 is a wasteful number, since it uses less digits than its factorization.

243234525552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688470 (or 688464 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 42.

Adding to 243234525552 its reverse (255525432342), we get a palindrome (498759957894).

The spelling of 243234525552 in words is "two hundred forty-three billion, two hundred thirty-four million, five hundred twenty-five thousand, five hundred fifty-two".