255445553 has 8 divisors (see below), whose sum is σ = 295060320. Its totient is φ = 218562880.

The previous prime is 255445537. The next prime is 255445559. The reversal of 255445553 is 355544552.

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

It is not a de Polignac number, because 255445553 - 2⁴ = 255445537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255445559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682823 + ... + 683196.

It is an arithmetic number, because the mean of its divisors is an integer number (36882540).

Almost surely, 2^255445553 is an apocalyptic number.

It is an amenable number.

255445553 is a deficient number, since it is larger than the sum of its proper divisors (39614767).

255445553 is a wasteful number, since it uses less digits than its factorization.

255445553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366047.

The product of its digits is 300000, while the sum is 38.

The square root of 255445553 is about 15982.6641396233. The cubic root of 255445553 is about 634.5016885403.

The spelling of 255445553 in words is "two hundred fifty-five million, four hundred forty-five thousand, five hundred fifty-three".