550455 has 8 divisors (see below), whose sum is σ = 880752. Its totient is φ = 293568.

The previous prime is 550447. The next prime is 550457. The reversal of 550455 is 554055.

550455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 550455 - 2³ = 550447 is a prime.

550455 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18334 + ... + 18363.

It is an arithmetic number, because the mean of its divisors is an integer number (110094).

2⁵⁵⁰⁴⁵⁵ is an apocalyptic number.

550455 is a deficient number, since it is larger than the sum of its proper divisors (330297).

550455 is a wasteful number, since it uses less digits than its factorization.

550455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36705.

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

The square root of 550455 is about 741.9265462295. The cubic root of 550455 is about 81.9547142374.

Subtracting 550455 from its reverse (554055), we obtain a square (3600 = 60²).

The spelling of 550455 in words is "five hundred fifty thousand, four hundred fifty-five".