231040055 has 16 divisors (see below), whose sum is σ = 286841088. Its totient is φ = 178464000.

The previous prime is 231040039. The next prime is 231040067. The reversal of 231040055 is 550040132.

It is not a de Polignac number, because 231040055 - 2⁴ = 231040039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79325 + ... + 82185.

It is an arithmetic number, because the mean of its divisors is an integer number (17927568).

Almost surely, 2^231040055 is an apocalyptic number.

231040055 is a deficient number, since it is larger than the sum of its proper divisors (55801033).

231040055 is a wasteful number, since it uses less digits than its factorization.

231040055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 231040055 is about 15200.0018092104. The cubic root of 231040055 is about 613.6147064427.

Adding to 231040055 its reverse (550040132), we get a palindrome (781080187).

The spelling of 231040055 in words is "two hundred thirty-one million, forty thousand, fifty-five".