231521052240550 has 24 divisors (see below), whose sum is σ = 430629611519016. Its totient is φ = 92608323186240.

The previous prime is 231521052240539. The next prime is 231521052240559. The reversal of 231521052240550 is 55042250125132.

It is a super-3 number, since 3×231521052240550³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231521052240559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62532217 + ... + 66131083.

It is an arithmetic number, because the mean of its divisors is an integer number (17942900479959).

Almost surely, 2^{231521052240550} is an apocalyptic number.

231521052240550 is a deficient number, since it is larger than the sum of its proper divisors (199108559278466).

231521052240550 is a wasteful number, since it uses less digits than its factorization.

231521052240550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4885512 (or 4885507 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 231521052240550 in words is "two hundred thirty-one trillion, five hundred twenty-one billion, fifty-two million, two hundred forty thousand, five hundred fifty".