2000544500 has 24 divisors (see below), whose sum is σ = 4369190280. Its totient is φ = 800217600.

The previous prime is 2000544499. The next prime is 2000544569. The reversal of 2000544500 is 54450002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52911076 + 1947633424 = 7274^2 + 44132^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000045 + ... + 2001044.

It is an arithmetic number, because the mean of its divisors is an integer number (182049595).

Almost surely, 2^2000544500 is an apocalyptic number.

2000544500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000544500 is an abundant number, since it is smaller than the sum of its proper divisors (2368645780).

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

2000544500 is a wasteful number, since it uses less digits than its factorization.

2000544500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001108 (or 4001096 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2000544500 is about 44727.4468307772. The cubic root of 2000544500 is about 1260.0353773556.

Adding to 2000544500 its reverse (54450002), we get a palindrome (2054994502).

It can be divided in two parts, 2000 and 544500, that multiplied together give a square (1089000000 = 33000²).

The spelling of 2000544500 in words is "two billion, five hundred forty-four thousand, five hundred".