232505143421525 has 24 divisors (see below), whose sum is σ = 310682947935360. Its totient is φ = 171585973333440.

The previous prime is 232505143421491. The next prime is 232505143421561. The reversal of 232505143421525 is 525124341505232.

It is not a de Polignac number, because 232505143421525 - 2¹² = 232505143417429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228935417 + ... + 229948766.

It is an arithmetic number, because the mean of its divisors is an integer number (12945122830640).

Almost surely, 2^{232505143421525} is an apocalyptic number.

232505143421525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

232505143421525 is a deficient number, since it is larger than the sum of its proper divisors (78177804513835).

232505143421525 is a wasteful number, since it uses less digits than its factorization.

232505143421525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458885765 (or 458885760 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 232505143421525 its reverse (525124341505232), we get a palindrome (757629484926757).

The spelling of 232505143421525 in words is "two hundred thirty-two trillion, five hundred five billion, one hundred forty-three million, four hundred twenty-one thousand, five hundred twenty-five".