2125504045 has 16 divisors (see below), whose sum is σ = 2925290880. Its totient is φ = 1452331584.

The previous prime is 2125504021. The next prime is 2125504049. The reversal of 2125504045 is 5404055212.

It is a cyclic number.

It is not a de Polignac number, because 2125504045 - 2²⁹ = 1588633133 is a prime.

It is a super-2 number, since 2×2125504045² = 9035534890622724050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125504049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97390 + ... + 117199.

It is an arithmetic number, because the mean of its divisors is an integer number (182830680).

Almost surely, 2^2125504045 is an apocalyptic number.

It is an amenable number.

2125504045 is a deficient number, since it is larger than the sum of its proper divisors (799786835).

2125504045 is a wasteful number, since it uses less digits than its factorization.

2125504045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214884.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 2125504045 is about 46103.1890979355. The cubic root of 2125504045 is about 1285.7424376170.

Adding to 2125504045 its reverse (5404055212), we get a palindrome (7529559257).

The spelling of 2125504045 in words is "two billion, one hundred twenty-five million, five hundred four thousand, forty-five".