55550210 has 8 divisors (see below), whose sum is σ = 99990396. Its totient is φ = 22220080.

The previous prime is 55550191. The next prime is 55550213. The reversal of 55550210 is 1205555.

It can be written as a sum of positive squares in 2 ways, for example, as 53392249 + 2157961 = 7307^2 + 1469^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55550213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777501 + ... + 2777520.

Almost surely, 2^55550210 is an apocalyptic number.

55550210 is a deficient number, since it is larger than the sum of its proper divisors (44440186).

55550210 is a wasteful number, since it uses less digits than its factorization.

55550210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555028.

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 55550210 is about 7453.2013256050. The cubic root of 55550210 is about 381.5591755247.

Adding to 55550210 its reverse (1205555), we get a palindrome (56755765).

The spelling of 55550210 in words is "fifty-five million, five hundred fifty thousand, two hundred ten".