55062210 has 64 divisors (see below), whose sum is σ = 152985600. Its totient is φ = 12422592.

The previous prime is 55062197. The next prime is 55062211. The reversal of 55062210 is 1226055.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (55062211) 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 31 ways as a sum of consecutive naturals, for example, 14931 + ... + 18249.

It is an arithmetic number, because the mean of its divisors is an integer number (2390400).

Almost surely, 2^55062210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55062210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76492800).

55062210 is an abundant number, since it is smaller than the sum of its proper divisors (97923390).

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

55062210 is a wasteful number, since it uses less digits than its factorization.

55062210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55062210 is about 7420.3914991057. The cubic root of 55062210 is about 380.4385748823.

Adding to 55062210 its reverse (1226055), we get a palindrome (56288265).

The spelling of 55062210 in words is "fifty-five million, sixty-two thousand, two hundred ten".