55263600 has 480 divisors, whose sum is σ = 243555840. Its totient is φ = 11612160.

The previous prime is 55263563. The next prime is 55263623. The reversal of 55263600 is 636255.

55263600 is a `hidden beast` number, since 5 + 52 + 6 + 3 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 1285179 + ... + 1285221.

It is an arithmetic number, because the mean of its divisors is an integer number (507408).

Almost surely, 2^55263600 is an apocalyptic number.

55263600 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 55263600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121777920).

55263600 is an abundant number, since it is smaller than the sum of its proper divisors (188292240).

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

55263600 is a wasteful number, since it uses less digits than its factorization.

55263600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 55263600 is about 7433.9491523685. The cubic root of 55263600 is about 380.9018285102.

Adding to 55263600 its reverse (636255), we get a palindrome (55899855).

The spelling of 55263600 in words is "fifty-five million, two hundred sixty-three thousand, six hundred".