550005553 has 8 divisors (see below), whose sum is σ = 553515200. Its totient is φ = 546503760.

The previous prime is 550005551. The next prime is 550005569. The reversal of 550005553 is 355500055.

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 550005553 - 2¹ = 550005551 is a prime.

It is a super-2 number, since 2×550005553² = 605012216661671618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550005551) 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, 201826 + ... + 204532.

It is an arithmetic number, because the mean of its divisors is an integer number (69189400).

Almost surely, 2^550005553 is an apocalyptic number.

It is an amenable number.

550005553 is a deficient number, since it is larger than the sum of its proper divisors (3509647).

550005553 is a wasteful number, since it uses less digits than its factorization.

550005553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927.

The product of its (nonzero) digits is 9375, while the sum is 28.

The square root of 550005553 is about 23452.1971891761. The cubic root of 550005553 is about 819.3240279799.

The spelling of 550005553 in words is "five hundred fifty million, five thousand, five hundred fifty-three".