255504223 has 4 divisors (see below), whose sum is σ = 275158408. Its totient is φ = 235850040.

The previous prime is 255504211. The next prime is 255504233. The reversal of 255504223 is 322405552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255504223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255504191 and 255504200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255504233) 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, 9827073 + ... + 9827098.

It is an arithmetic number, because the mean of its divisors is an integer number (68789602).

Almost surely, 2^255504223 is an apocalyptic number.

255504223 is a deficient number, since it is larger than the sum of its proper divisors (19654185).

255504223 is a wasteful number, since it uses less digits than its factorization.

255504223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19654184.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 255504223 is about 15984.4994604148. The cubic root of 255504223 is about 634.5502616628.

Adding to 255504223 its reverse (322405552), we get a palindrome (577909775).

The spelling of 255504223 in words is "two hundred fifty-five million, five hundred four thousand, two hundred twenty-three".