550556055 has 64 divisors (see below), whose sum is σ = 1121541120. Its totient is φ = 251019648.

The previous prime is 550556053. The next prime is 550556089. The reversal of 550556055 is 550655055.

550556055 is a `hidden beast` number, since 5 + 50 + 556 + 0 + 55 = 666.

It is not a de Polignac number, because 550556055 - 2¹ = 550556053 is a prime.

It is a super-2 number, since 2×550556055² = 606223939394326050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550556053) 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 63 ways as a sum of consecutive naturals, for example, 645009 + ... + 645861.

It is an arithmetic number, because the mean of its divisors is an integer number (17524080).

Almost surely, 2^550556055 is an apocalyptic number.

550556055 is an abundant number, since it is smaller than the sum of its proper divisors (570985065).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550556055 is a wasteful number, since it uses less digits than its factorization.

550556055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1551 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The square root of 550556055 is about 23463.9309366525. The cubic root of 550556055 is about 819.5972913527.

The spelling of 550556055 in words is "five hundred fifty million, five hundred fifty-six thousand, fifty-five".