55571112200 has 108 divisors (see below), whose sum is σ = 131482141245. Its totient is φ = 21843057600.

The previous prime is 55571112197. The next prime is 55571112227. The reversal of 55571112200 is 221117555.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 54459689956 + 1111422244 = 233366^2 + 33338^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166690.

It is a super-2 number, since 2×55571112200² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 263370095 + ... + 263370305.

Almost surely, 2^55571112200 is an apocalyptic number.

55571112200 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 55571112200

55571112200 is an abundant number, since it is smaller than the sum of its proper divisors (75911029045).

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

55571112200 is an equidigital number, since it uses as much as digits as its factorization.

55571112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 29.

Adding to 55571112200 its reverse (221117555), we get a palindrome (55792229755).

The spelling of 55571112200 in words is "fifty-five billion, five hundred seventy-one million, one hundred twelve thousand, two hundred".