5125691 has 4 divisors (see below), whose sum is σ = 5131584. Its totient is φ = 5119800.

The previous prime is 5125669. The next prime is 5125693. The reversal of 5125691 is 1965215.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5125691 - 2²² = 931387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5125693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1355 + ... + 3476.

It is an arithmetic number, because the mean of its divisors is an integer number (1282896).

Almost surely, 2^5125691 is an apocalyptic number.

5125691 is a deficient number, since it is larger than the sum of its proper divisors (5893).

5125691 is a wasteful number, since it uses less digits than its factorization.

5125691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5892.

The product of its digits is 2700, while the sum is 29.

The square root of 5125691 is about 2263.9988957594. The cubic root of 5125691 is about 172.4186103477.

The spelling of 5125691 in words is "five million, one hundred twenty-five thousand, six hundred ninety-one".