55211300 has 18 divisors (see below), whose sum is σ = 119808738. Its totient is φ = 22084480.

The previous prime is 55211281. The next prime is 55211309. The reversal of 55211300 is 311255.

It can be written as a sum of positive squares in 3 ways, for example, as 19307236 + 35904064 = 4394^2 + 5992^2 .

It is not an unprimeable number, because it can be changed into a prime (55211309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275957 + ... + 276156.

It is an arithmetic number, because the mean of its divisors is an integer number (6656041).

Almost surely, 2^55211300 is an apocalyptic number.

55211300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55211300 is an abundant number, since it is smaller than the sum of its proper divisors (64597438).

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

55211300 is a wasteful number, since it uses less digits than its factorization.

55211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552127 (or 552120 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 55211300 is about 7430.4306739246. The cubic root of 55211300 is about 380.7816321349.

Adding to 55211300 its reverse (311255), we get a palindrome (55522555).

The spelling of 55211300 in words is "fifty-five million, two hundred eleven thousand, three hundred".