231230550 has 48 divisors (see below), whose sum is σ = 591962112. Its totient is φ = 59671200.

The previous prime is 231230539. The next prime is 231230591. The reversal of 231230550 is 55032132.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20214 + ... + 29513.

It is an arithmetic number, because the mean of its divisors is an integer number (12332544).

Almost surely, 2^231230550 is an apocalyptic number.

231230550 is an abundant number, since it is smaller than the sum of its proper divisors (360731562).

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

231230550 is a wasteful number, since it uses less digits than its factorization.

231230550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49773 (or 49768 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 231230550 is about 15206.2668002373. The cubic root of 231230550 is about 613.7833040803.

Adding to 231230550 its reverse (55032132), we get a palindrome (286262682).

The spelling of 231230550 in words is "two hundred thirty-one million, two hundred thirty thousand, five hundred fifty".