550255800 has 48 divisors (see below), whose sum is σ = 1705794840. Its totient is φ = 146734720.

The previous prime is 550255787. The next prime is 550255801. The reversal of 550255800 is 8552055.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550255801) 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 11 ways as a sum of consecutive naturals, for example, 457947 + ... + 459146.

Almost surely, 2^550255800 is an apocalyptic number.

550255800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550255800 is an abundant number, since it is smaller than the sum of its proper divisors (1155539040).

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

550255800 is a wasteful number, since it uses less digits than its factorization.

550255800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917112 (or 917103 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 550255800 is about 23457.5318394754. The cubic root of 550255800 is about 819.4482705387.

The spelling of 550255800 in words is "five hundred fifty million, two hundred fifty-five thousand, eight hundred".