5125421 has 16 divisors (see below), whose sum is σ = 6249600. Its totient is φ = 4105728.

The previous prime is 5125411. The next prime is 5125427. The reversal of 5125421 is 1245215.

5125421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5125421 - 2¹⁰ = 5124397 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5125393 and 5125402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5125427) 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, 11621 + ... + 12053.

It is an arithmetic number, because the mean of its divisors is an integer number (390600).

Almost surely, 2^5125421 is an apocalyptic number.

It is an amenable number.

5125421 is a deficient number, since it is larger than the sum of its proper divisors (1124179).

5125421 is a wasteful number, since it uses less digits than its factorization.

5125421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its digits is 400, while the sum is 20.

The square root of 5125421 is about 2263.9392659698. The cubic root of 5125421 is about 172.4155828637.

The spelling of 5125421 in words is "five million, one hundred twenty-five thousand, four hundred twenty-one".