550040055 has 32 divisors (see below), whose sum is σ = 921093120. Its totient is φ = 279755520.

The previous prime is 550040017. The next prime is 550040069.

550040055 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 550040055 - 2⁶ = 550039991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121635 + ... + 126075.

It is an arithmetic number, because the mean of its divisors is an integer number (28784160).

Almost surely, 2^550040055 is an apocalyptic number.

550040055 is a deficient number, since it is larger than the sum of its proper divisors (371053065).

550040055 is a wasteful number, since it uses less digits than its factorization.

550040055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831.

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 550040055 is about 23452.9327590389. The cubic root of 550040055 is about 819.3411597624.

The spelling of 550040055 in words is "five hundred fifty million, forty thousand, fifty-five".