2154505200 has 120 divisors (see below), whose sum is σ = 7307643888. Its totient is φ = 540733440.

The previous prime is 2154505193. The next prime is 2154505211. The reversal of 2154505200 is 25054512.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 32407 + ... + 73206.

Almost surely, 2^2154505200 is an apocalyptic number.

2154505200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154505200 is an abundant number, since it is smaller than the sum of its proper divisors (5153138688).

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

2154505200 is a wasteful number, since it uses less digits than its factorization.

2154505200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105651 (or 105640 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 2154505200 is about 46416.6478755198. The cubic root of 2154505200 is about 1291.5637547330.

Adding to 2154505200 its reverse (25054512), we get a palindrome (2179559712).

The spelling of 2154505200 in words is "two billion, one hundred fifty-four million, five hundred five thousand, two hundred".