5121435125 has 8 divisors (see below), whose sum is σ = 6391551192. Its totient is φ = 4097148000.

The previous prime is 5121435023. The next prime is 5121435157. The reversal of 5121435125 is 5215341215.

It can be written as a sum of positive squares in 4 ways, for example, as 651576676 + 4469858449 = 25526^2 + 66857^2 .

It is not a de Polignac number, because 5121435125 - 2²⁰ = 5120386549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20485616 + ... + 20485865.

It is an arithmetic number, because the mean of its divisors is an integer number (798943899).

Almost surely, 2^5121435125 is an apocalyptic number.

It is an amenable number.

5121435125 is a deficient number, since it is larger than the sum of its proper divisors (1270116067).

5121435125 is an equidigital number, since it uses as much as digits as its factorization.

5121435125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40971496 (or 40971486 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 5121435125 is about 71564.2028181688. The cubic root of 5121435125 is about 1723.7087725592.

The spelling of 5121435125 in words is "five billion, one hundred twenty-one million, four hundred thirty-five thousand, one hundred twenty-five".