55510224 has 160 divisors (see below), whose sum is σ = 186845184. Its totient is φ = 13770240.

The previous prime is 55510223. The next prime is 55510241. The reversal of 55510224 is 42201555.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 55510194 and 55510203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510223) 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, 84682 + ... + 85334.

Almost surely, 2^55510224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55510224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93422592).

55510224 is an abundant number, since it is smaller than the sum of its proper divisors (131334960).

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

55510224 is a wasteful number, since it uses less digits than its factorization.

55510224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55510224 is about 7450.5183712276. The cubic root of 55510224 is about 381.4676025891.

Adding to 55510224 its reverse (42201555), we get a palindrome (97711779).

The spelling of 55510224 in words is "fifty-five million, five hundred ten thousand, two hundred twenty-four".