55440300 has 72 divisors (see below), whose sum is σ = 161451472. Its totient is φ = 14688000.

The previous prime is 55440263. The next prime is 55440313. The reversal of 55440300 is 304455.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53790 + ... + 54810.

Almost surely, 2^55440300 is an apocalyptic number.

55440300 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 55440300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80725736).

55440300 is an abundant number, since it is smaller than the sum of its proper divisors (106011172).

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

55440300 is a wasteful number, since it uses less digits than its factorization.

55440300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 55440300 is about 7445.8243331414. The cubic root of 55440300 is about 381.3073621474.

Adding to 55440300 its reverse (304455), we get a palindrome (55744755).

The spelling of 55440300 in words is "fifty-five million, four hundred forty thousand, three hundred".