243132245550 has 36 divisors (see below), whose sum is σ = 653215300920. Its totient is φ = 64835265360.

The previous prime is 243132245533. The next prime is 243132245561. The reversal of 243132245550 is 55542231342.

243132245550 is a `hidden beast` number, since 2 + 4 + 31 + 32 + 2 + 45 + 550 = 666.

It is a super-2 number, since 2×243132245550² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 270146490 + ... + 270147389.

It is an arithmetic number, because the mean of its divisors is an integer number (18144869470).

Almost surely, 2^243132245550 is an apocalyptic number.

243132245550 is an abundant number, since it is smaller than the sum of its proper divisors (410083055370).

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

243132245550 is a wasteful number, since it uses less digits than its factorization.

243132245550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540293897 (or 540293889 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 243132245550 its reverse (55542231342), we get a palindrome (298674476892).

The spelling of 243132245550 in words is "two hundred forty-three billion, one hundred thirty-two million, two hundred forty-five thousand, five hundred fifty".