550000555 has 16 divisors (see below), whose sum is σ = 713220480. Its totient is φ = 404754048.

The previous prime is 550000547. The next prime is 550000559. The reversal of 550000555 is 555000055.

It is a cyclic number.

It is not a de Polignac number, because 550000555 - 2³ = 550000547 is a prime.

It is a super-2 number, since 2×550000555² = 605001221000616050, which contains 22 as substring.

550000555 is a modest number, since divided by 555 gives 550 as remainder.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (550000559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4606 + ... + 33484.

It is an arithmetic number, because the mean of its divisors is an integer number (44576280).

Almost surely, 2^550000555 is an apocalyptic number.

550000555 is a deficient number, since it is larger than the sum of its proper divisors (163219925).

550000555 is a wasteful number, since it uses less digits than its factorization.

550000555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29190.

The product of its (nonzero) digits is 3125, while the sum is 25.

The square root of 550000555 is about 23452.0906317539. The cubic root of 550000555 is about 819.3215461904.

The spelling of 550000555 in words is "five hundred fifty million, five hundred fifty-five", and thus it is an aban number.