55116400 has 30 divisors (see below), whose sum is σ = 132418112. Its totient is φ = 22046400.

The previous prime is 55116323. The next prime is 55116401. The reversal of 55116400 is 461155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55116401) 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, 68496 + ... + 69295.

Almost surely, 2^55116400 is an apocalyptic number.

55116400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55116400 is an abundant number, since it is smaller than the sum of its proper divisors (77301712).

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

55116400 is a wasteful number, since it uses less digits than its factorization.

55116400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137809 (or 137798 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 55116400 is about 7424.0420257431. The cubic root of 55116400 is about 380.5633380483.

Adding to 55116400 its reverse (461155), we get a palindrome (55577555).

It can be divided in two parts, 5511 and 6400, that added together give a palindrome (11911).

The spelling of 55116400 in words is "fifty-five million, one hundred sixteen thousand, four hundred".