5125106021 has 16 divisors (see below), whose sum is σ = 5905163520. Its totient is φ = 4357080960.

The previous prime is 5125106017. The next prime is 5125106027. The reversal of 5125106021 is 1206015215.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5125106021 - 2² = 5125106017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5125106027) 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, 1954091 + ... + 1956711.

It is an arithmetic number, because the mean of its divisors is an integer number (369072720).

Almost surely, 2^5125106021 is an apocalyptic number.

It is an amenable number.

5125106021 is a deficient number, since it is larger than the sum of its proper divisors (780057499).

5125106021 is a wasteful number, since it uses less digits than its factorization.

5125106021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 5125106021 is about 71589.8457953361. The cubic root of 5125106021 is about 1724.1205090017.

The spelling of 5125106021 in words is "five billion, one hundred twenty-five million, one hundred six thousand, twenty-one".