2125045000 has 80 divisors (see below), whose sum is σ = 5362142940. Its totient is φ = 784608000.

The previous prime is 2125044989. The next prime is 2125045031. The reversal of 2125045000 is 5405212.

It can be written as a sum of positive squares in 10 ways, for example, as 1088076196 + 1036968804 = 32986^2 + 32202^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48654 + ... + 81346.

Almost surely, 2^2125045000 is an apocalyptic number.

2125045000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125045000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2681071470).

2125045000 is an abundant number, since it is smaller than the sum of its proper divisors (3237097940).

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

2125045000 is a wasteful number, since it uses less digits than its factorization.

2125045000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32732 (or 32713 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2125045000 is about 46098.2103774105. The cubic root of 2125045000 is about 1285.6498703766.

The spelling of 2125045000 in words is "two billion, one hundred twenty-five million, forty-five thousand".