231552500451521 has 8 divisors (see below), whose sum is σ = 233061870115200. Its totient is φ = 230046588680832.

The previous prime is 231552500451499. The next prime is 231552500451557. The reversal of 231552500451521 is 125154005255132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231552500451521 - 2¹⁰ = 231552500450497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231552500451121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864338885 + ... + 864606738.

It is an arithmetic number, because the mean of its divisors is an integer number (29132733764400).

Almost surely, 2^{231552500451521} is an apocalyptic number.

It is an amenable number.

231552500451521 is a deficient number, since it is larger than the sum of its proper divisors (1509369663679).

231552500451521 is a wasteful number, since it uses less digits than its factorization.

231552500451521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728946495.

The product of its (nonzero) digits is 300000, while the sum is 41.

The spelling of 231552500451521 in words is "two hundred thirty-one trillion, five hundred fifty-two billion, five hundred million, four hundred fifty-one thousand, five hundred twenty-one".