550005055 has 16 divisors (see below), whose sum is σ = 664357824. Its totient is φ = 437114880.

The previous prime is 550005019. The next prime is 550005059. The reversal of 550005055 is 550500055.

550005055 = 253² + 254² + ... + 1185².

It is not a de Polignac number, because 550005055 - 2²¹ = 547907903 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 (550005059) 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, 896929 + ... + 897541.

It is an arithmetic number, because the mean of its divisors is an integer number (41522364).

Almost surely, 2^550005055 is an apocalyptic number.

550005055 is a deficient number, since it is larger than the sum of its proper divisors (114352769).

550005055 is a wasteful number, since it uses less digits than its factorization.

550005055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506.

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

The square root of 550005055 is about 23452.1865718316. The cubic root of 550005055 is about 819.3237806954.

The spelling of 550005055 in words is "five hundred fifty million, five thousand, fifty-five".