55455300 has 288 divisors, whose sum is σ = 199987200. Its totient is φ = 13115520.

The previous prime is 55455293. The next prime is 55455307. The reversal of 55455300 is 355455.

It is an interprime number because it is at equal distance from previous prime (55455293) and next prime (55455307).

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

It is not an unprimeable number, because it can be changed into a prime (55455307) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1179877 + ... + 1179923.

It is an arithmetic number, because the mean of its divisors is an integer number (694400).

Almost surely, 2^55455300 is an apocalyptic number.

55455300 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 55455300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99993600).

55455300 is an abundant number, since it is smaller than the sum of its proper divisors (144531900).

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

55455300 is a wasteful number, since it uses less digits than its factorization.

55455300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 55455300 is about 7446.8315409978. The cubic root of 55455300 is about 381.3417480525.

It can be divided in two parts, 55455 and 300, that added together give a palindrome (55755).

The spelling of 55455300 in words is "fifty-five million, four hundred fifty-five thousand, three hundred".