55532300 has 36 divisors (see below), whose sum is σ = 121346400. Its totient is φ = 22057920.

The previous prime is 55532299. The next prime is 55532311. The reversal of 55532300 is 323555.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13037 + ... + 16763.

Almost surely, 2^55532300 is an apocalyptic number.

55532300 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 55532300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60673200).

55532300 is an abundant number, since it is smaller than the sum of its proper divisors (65814100).

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

55532300 is a wasteful number, since it uses less digits than its factorization.

55532300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 55532300 is about 7451.9997316157. Note that the first 3 decimals coincide. The cubic root of 55532300 is about 381.5181648224.

Adding to 55532300 its reverse (323555), we get a palindrome (55855855).

The spelling of 55532300 in words is "fifty-five million, five hundred thirty-two thousand, three hundred".