2155244300 has 36 divisors (see below), whose sum is σ = 5102053656. Its totient is φ = 783724800.

The previous prime is 2155244293. The next prime is 2155244321. The reversal of 2155244300 is 34425512.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2155244300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 978557 + ... + 980756.

Almost surely, 2^2155244300 is an apocalyptic number.

2155244300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2155244300 is an abundant number, since it is smaller than the sum of its proper divisors (2946809356).

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

2155244300 is a wasteful number, since it uses less digits than its factorization.

2155244300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959338 (or 1959331 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2155244300 is about 46424.6087759499. The cubic root of 2155244300 is about 1291.7114275620.

Adding to 2155244300 its reverse (34425512), we get a palindrome (2189669812).

The spelling of 2155244300 in words is "two billion, one hundred fifty-five million, two hundred forty-four thousand, three hundred".