231551432035025 has 12 divisors (see below), whose sum is σ = 287219134095024. Its totient is φ = 185179624098000.

The previous prime is 231551432034991. The next prime is 231551432035097. The reversal of 231551432035025 is 520530234155132.

It is not a de Polignac number, because 231551432035025 - 2¹² = 231551432030929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1537961471 + ... + 1538112020.

It is an arithmetic number, because the mean of its divisors is an integer number (23934927841252).

Almost surely, 2^{231551432035025} is an apocalyptic number.

231551432035025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231551432035025 is a deficient number, since it is larger than the sum of its proper divisors (55667702059999).

231551432035025 is a wasteful number, since it uses less digits than its factorization.

231551432035025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076076512 (or 3076076507 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 231551432035025 in words is "two hundred thirty-one trillion, five hundred fifty-one billion, four hundred thirty-two million, thirty-five thousand, twenty-five".