550505455 has 16 divisors (see below), whose sum is σ = 665457408. Its totient is φ = 437184000.

The previous prime is 550505453. The next prime is 550505489. The reversal of 550505455 is 554505055.

It is not a de Polignac number, because 550505455 - 2¹ = 550505453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550505455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550505453) 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, 555010 + ... + 556000.

It is an arithmetic number, because the mean of its divisors is an integer number (41591088).

Almost surely, 2^550505455 is an apocalyptic number.

550505455 is a deficient number, since it is larger than the sum of its proper divisors (114951953).

550505455 is a wasteful number, since it uses less digits than its factorization.

550505455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 62500, while the sum is 34.

The square root of 550505455 is about 23462.8526611749. The cubic root of 550505455 is about 819.5721816518.

The spelling of 550505455 in words is "five hundred fifty million, five hundred five thousand, four hundred fifty-five".