55105300 has 36 divisors (see below), whose sum is σ = 120547840. Its totient is φ = 21863520.

The previous prime is 55105261. The next prime is 55105331. The reversal of 55105300 is 350155.

It is a congruent 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, 10531 + ... + 14869.

Almost surely, 2^55105300 is an apocalyptic number.

55105300 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 55105300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60273920).

55105300 is an abundant number, since it is smaller than the sum of its proper divisors (65442540).

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

55105300 is a wasteful number, since it uses less digits than its factorization.

55105300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480 (or 4473 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 55105300 is about 7423.2944169014. The cubic root of 55105300 is about 380.5377888671.

Adding to 55105300 its reverse (350155), we get a palindrome (55455455).

The spelling of 55105300 in words is "fifty-five million, one hundred five thousand, three hundred".