550531255 has 8 divisors (see below), whose sum is σ = 660765024. Its totient is φ = 440340000.

The previous prime is 550531253. The next prime is 550531259. The reversal of 550531255 is 552135055.

It is a happy number.

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

It is not a de Polignac number, because 550531255 - 2¹ = 550531253 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 (550531253) 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, 38605 + ... + 50905.

It is an arithmetic number, because the mean of its divisors is an integer number (82595628).

Almost surely, 2^550531255 is an apocalyptic number.

550531255 is a deficient number, since it is larger than the sum of its proper divisors (110233769).

550531255 is a wasteful number, since it uses less digits than its factorization.

550531255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21257.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 550531255 is about 23463.4024600014. The cubic root of 550531255 is about 819.5849848141.

The spelling of 550531255 in words is "five hundred fifty million, five hundred thirty-one thousand, two hundred fifty-five".