231055567 has 4 divisors (see below), whose sum is σ = 235415160. Its totient is φ = 226695976.

The previous prime is 231055553. The next prime is 231055571. The reversal of 231055567 is 765550132.

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

It is a cyclic number.

It is not a de Polignac number, because 231055567 - 2¹¹ = 231053519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231055577) 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, 2179717 + ... + 2179822.

It is an arithmetic number, because the mean of its divisors is an integer number (58853790).

Almost surely, 2^231055567 is an apocalyptic number.

231055567 is a deficient number, since it is larger than the sum of its proper divisors (4359593).

231055567 is an equidigital number, since it uses as much as digits as its factorization.

231055567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359592.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 231055567 is about 15200.5120637431. The cubic root of 231055567 is about 613.6284388066.

The spelling of 231055567 in words is "two hundred thirty-one million, fifty-five thousand, five hundred sixty-seven".