2045253125 has 18 divisors (see below), whose sum is σ = 2559566646. Its totient is φ = 1634180000.

The previous prime is 2045253109. The next prime is 2045253137. The reversal of 2045253125 is 5213525402.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 9 ways, for example, as 1625863684 + 419389441 = 40322^2 + 20479^2 .

It is not a de Polignac number, because 2045253125 - 2⁴ = 2045253109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2527721 + ... + 2528529.

It is an arithmetic number, because the mean of its divisors is an integer number (142198147).

Almost surely, 2^2045253125 is an apocalyptic number.

2045253125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2045253125 is a deficient number, since it is larger than the sum of its proper divisors (514313521).

2045253125 is an frugal number, since it uses more digits than its factorization.

2045253125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2045253125 is about 45224.4748449332. The cubic root of 2045253125 is about 1269.3528281405.

Adding to 2045253125 its reverse (5213525402), we get a palindrome (7258778527).

The spelling of 2045253125 in words is "two billion, forty-five million, two hundred fifty-three thousand, one hundred twenty-five".