55208210 has 16 divisors (see below), whose sum is σ = 102580992. Its totient is φ = 21370800.

The previous prime is 55208191. The next prime is 55208227. The reversal of 55208210 is 1280255.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 88736 + ... + 89355.

It is an arithmetic number, because the mean of its divisors is an integer number (6411312).

Almost surely, 2^55208210 is an apocalyptic number.

55208210 is a deficient number, since it is larger than the sum of its proper divisors (47372782).

55208210 is a wasteful number, since it uses less digits than its factorization.

55208210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178129.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 55208210 is about 7430.2227422871. Note that the first 3 decimals coincide. The cubic root of 55208210 is about 380.7745282921.

Adding to 55208210 its reverse (1280255), we get a palindrome (56488465).

The spelling of 55208210 in words is "fifty-five million, two hundred eight thousand, two hundred ten".