255031223 has 4 divisors (see below), whose sum is σ = 256866120. Its totient is φ = 253196328.

The previous prime is 255031213. The next prime is 255031241. The reversal of 255031223 is 322130552.

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 255031223 - 2⁶ = 255031159 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 (255031213) 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, 917240 + ... + 917517.

It is an arithmetic number, because the mean of its divisors is an integer number (64216530).

Almost surely, 2^255031223 is an apocalyptic number.

255031223 is a deficient number, since it is larger than the sum of its proper divisors (1834897).

255031223 is a wasteful number, since it uses less digits than its factorization.

255031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834896.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 255031223 is about 15969.6970227991. The cubic root of 255031223 is about 634.1584512093.

Adding to 255031223 its reverse (322130552), we get a palindrome (577161775).

The spelling of 255031223 in words is "two hundred fifty-five million, thirty-one thousand, two hundred twenty-three".