231551255 has 16 divisors (see below), whose sum is σ = 303340800. Its totient is φ = 168645888.

The previous prime is 231551251. The next prime is 231551269. The reversal of 231551255 is 552155132.

It is a cyclic number.

It is not a de Polignac number, because 231551255 - 2² = 231551251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231551251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19655 + ... + 29144.

It is an arithmetic number, because the mean of its divisors is an integer number (18958800).

Almost surely, 2^231551255 is an apocalyptic number.

231551255 is a deficient number, since it is larger than the sum of its proper divisors (71789545).

231551255 is a wasteful number, since it uses less digits than its factorization.

231551255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48890.

The product of its digits is 7500, while the sum is 29.

The square root of 231551255 is about 15216.8083052919. The cubic root of 231551255 is about 614.0669350577.

The spelling of 231551255 in words is "two hundred thirty-one million, five hundred fifty-one thousand, two hundred fifty-five".