232540505 has 4 divisors (see below), whose sum is σ = 279048612. Its totient is φ = 186032400.

The previous prime is 232540459. The next prime is 232540507. The reversal of 232540505 is 505045232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71859529 + 160680976 = 8477^2 + 12676^2 .

It is not a de Polignac number, because 232540505 - 2⁸ = 232540249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232540507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23254046 + ... + 23254055.

It is an arithmetic number, because the mean of its divisors is an integer number (69762153).

Almost surely, 2^232540505 is an apocalyptic number.

It is an amenable number.

232540505 is a deficient number, since it is larger than the sum of its proper divisors (46508107).

232540505 is an equidigital number, since it uses as much as digits as its factorization.

232540505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46508106.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 232540505 is about 15249.2788354073. The cubic root of 232540505 is about 614.9401796972.

Adding to 232540505 its reverse (505045232), we get a palindrome (737585737).

The spelling of 232540505 in words is "two hundred thirty-two million, five hundred forty thousand, five hundred five".