2045512125 has 24 divisors (see below), whose sum is σ = 3687378552. Its totient is φ = 1090939200.

The previous prime is 2045512121. The next prime is 2045512163. The reversal of 2045512125 is 5212155402.

2045512125 is a `hidden beast` number, since 20 + 4 + 5 + 512 + 125 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 121286169 + 1924225956 = 11013^2 + 43866^2 .

It is not a de Polignac number, because 2045512125 - 2² = 2045512121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045512121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 907992 + ... + 910241.

It is an arithmetic number, because the mean of its divisors is an integer number (153640773).

Almost surely, 2^2045512125 is an apocalyptic number.

2045512125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2045512125 is a deficient number, since it is larger than the sum of its proper divisors (1641866427).

2045512125 is a wasteful number, since it uses less digits than its factorization.

2045512125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818254 (or 1818241 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2045512125 is about 45227.3382480110. The cubic root of 2045512125 is about 1269.4064072471.

Adding to 2045512125 its reverse (5212155402), we get a palindrome (7257667527).

The spelling of 2045512125 in words is "two billion, forty-five million, five hundred twelve thousand, one hundred twenty-five".