2125045500 has 192 divisors, whose sum is σ = 6566676480. Its totient is φ = 532512000.

The previous prime is 2125045477. The next prime is 2125045553. The reversal of 2125045500 is 55405212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4930285 + ... + 4930715.

It is an arithmetic number, because the mean of its divisors is an integer number (34201440).

Almost surely, 2^2125045500 is an apocalyptic number.

2125045500 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 2125045500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3283338240).

2125045500 is an abundant number, since it is smaller than the sum of its proper divisors (4441630980).

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

2125045500 is a wasteful number, since it uses less digits than its factorization.

2125045500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 633 counting only the distinct ones).

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

The square root of 2125045500 is about 46098.2158006142. The cubic root of 2125045500 is about 1285.6499712097.

The spelling of 2125045500 in words is "two billion, one hundred twenty-five million, forty-five thousand, five hundred".