550551553 has 8 divisors (see below), whose sum is σ = 560649600. Its totient is φ = 540531888.

The previous prime is 550551517. The next prime is 550551559. The reversal of 550551553 is 355155055.

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

It is a cyclic number.

It is not a de Polignac number, because 550551553 - 2²⁵ = 516997121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550551559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5326 + ... + 33607.

It is an arithmetic number, because the mean of its divisors is an integer number (70081200).

Almost surely, 2^550551553 is an apocalyptic number.

It is an amenable number.

550551553 is a deficient number, since it is larger than the sum of its proper divisors (10098047).

550551553 is a wasteful number, since it uses less digits than its factorization.

550551553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39191.

The product of its (nonzero) digits is 46875, while the sum is 34.

The square root of 550551553 is about 23463.8350019770. The cubic root of 550551553 is about 819.5950573464.

The spelling of 550551553 in words is "five hundred fifty million, five hundred fifty-one thousand, five hundred fifty-three".