55116200 has 24 divisors (see below), whose sum is σ = 128145630. Its totient is φ = 22046400.

The previous prime is 55116197. The next prime is 55116203. The reversal of 55116200 is 261155.

It is an interprime number because it is at equal distance from previous prime (55116197) and next prime (55116203).

It can be written as a sum of positive squares in 3 ways, for example, as 25020004 + 30096196 = 5002^2 + 5486^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (55116203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137591 + ... + 137990.

Almost surely, 2^55116200 is an apocalyptic number.

55116200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55116200 is an abundant number, since it is smaller than the sum of its proper divisors (73029430).

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

55116200 is a wasteful number, since it uses less digits than its factorization.

55116200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275597 (or 275588 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 55116200 is about 7424.0285559796. The cubic root of 55116200 is about 380.5628777330.

Adding to 55116200 its reverse (261155), we get a palindrome (55377355).

It can be divided in two parts, 5511 and 6200, that added together give a palindrome (11711).

The spelling of 55116200 in words is "fifty-five million, one hundred sixteen thousand, two hundred".