2000012500 has 36 divisors (see below), whose sum is σ = 4374774684. Its totient is φ = 800000000.

The previous prime is 2000012477. The next prime is 2000012519. The reversal of 2000012500 is 52100002.

It can be written as a sum of positive squares in 6 ways, for example, as 929152324 + 1070860176 = 30482^2 + 32724^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67501 + ... + 92500.

It is an arithmetic number, because the mean of its divisors is an integer number (121521519).

Almost surely, 2^2000012500 is an apocalyptic number.

2000012500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000012500 is an abundant number, since it is smaller than the sum of its proper divisors (2374762184).

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

2000012500 is an equidigital number, since it uses as much as digits as its factorization.

2000012500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160030 (or 160008 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 2000012500 is about 44721.4993040260. The cubic root of 2000012500 is about 1259.9236747249.

Adding to 2000012500 its reverse (52100002), we get a palindrome (2052112502).

The spelling of 2000012500 in words is "two billion, twelve thousand, five hundred".