55562200 has 48 divisors (see below), whose sum is σ = 129712680. Its totient is φ = 22133760.

The previous prime is 55562189. The next prime is 55562233. The reversal of 55562200 is 226555.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70207 + ... + 70993.

Almost surely, 2^55562200 is an apocalyptic number.

55562200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55562200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64856340).

55562200 is an abundant number, since it is smaller than the sum of its proper divisors (74150480).

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

55562200 is a wasteful number, since it uses less digits than its factorization.

55562200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55562200 is about 7454.0056345565. The cubic root of 55562200 is about 381.5866255584.

Adding to 55562200 its reverse (226555), we get a palindrome (55788755).

The spelling of 55562200 in words is "fifty-five million, five hundred sixty-two thousand, two hundred".