55116210 has 64 divisors (see below), whose sum is σ = 142238592. Its totient is φ = 13618176.

The previous prime is 55116203. The next prime is 55116221. The reversal of 55116210 is 1261155.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33364 + ... + 34976.

It is an arithmetic number, because the mean of its divisors is an integer number (2222478).

Almost surely, 2^55116210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55116210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71119296).

55116210 is an abundant number, since it is smaller than the sum of its proper divisors (87122382).

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

55116210 is a wasteful number, since it uses less digits than its factorization.

55116210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 55116210 is about 7424.0292294683. The cubic root of 55116210 is about 380.5629007488.

Adding to 55116210 its reverse (1261155), we get a palindrome (56377365).

It can be divided in two parts, 551 and 16210, that added together give a palindrome (16761).

The spelling of 55116210 in words is "fifty-five million, one hundred sixteen thousand, two hundred ten".