231536055 has 32 divisors (see below), whose sum is σ = 399052800. Its totient is φ = 114301440.

The previous prime is 231536051. The next prime is 231536083. The reversal of 231536055 is 550635132.

It is not a de Polignac number, because 231536055 - 2² = 231536051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231536051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130 + ... + 21519.

It is an arithmetic number, because the mean of its divisors is an integer number (12470400).

Almost surely, 2^231536055 is an apocalyptic number.

231536055 is a deficient number, since it is larger than the sum of its proper divisors (167516745).

231536055 is a wasteful number, since it uses less digits than its factorization.

231536055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21711.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 231536055 is about 15216.3088493892. The cubic root of 231536055 is about 614.0534981166.

The spelling of 231536055 in words is "two hundred thirty-one million, five hundred thirty-six thousand, fifty-five".