255404553 has 8 divisors (see below), whose sum is σ = 341752416. Its totient is φ = 169663200.

The previous prime is 255404531. The next prime is 255404573. The reversal of 255404553 is 355404552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255404553 - 2¹⁴ = 255388169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255404503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150643 + ... + 152328.

It is an arithmetic number, because the mean of its divisors is an integer number (42719052).

Almost surely, 2^255404553 is an apocalyptic number.

It is an amenable number.

255404553 is a deficient number, since it is larger than the sum of its proper divisors (86347863).

255404553 is a wasteful number, since it uses less digits than its factorization.

255404553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303255.

The product of its (nonzero) digits is 60000, while the sum is 33.

The square root of 255404553 is about 15981.3814484230. The cubic root of 255404553 is about 634.4677400650.

Subtracting 255404553 from its reverse (355404552), we obtain a palindrome (99999999).

The spelling of 255404553 in words is "two hundred fifty-five million, four hundred four thousand, five hundred fifty-three".