7427125 has 8 divisors (see below), whose sum is σ = 9269208. Its totient is φ = 5941600.

The previous prime is 7427117. The next prime is 7427131. The reversal of 7427125 is 5217247.

7427125 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 39601 + 7387524 = 199^2 + 2718^2 .

It is not a de Polignac number, because 7427125 - 2³ = 7427117 is a prime.

It is an Ulam number.

It is a Duffinian number.

7427125 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7427093 and 7427102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29584 + ... + 29833.

It is an arithmetic number, because the mean of its divisors is an integer number (1158651).

Almost surely, 2^7427125 is an apocalyptic number.

It is an amenable number.

7427125 is a deficient number, since it is larger than the sum of its proper divisors (1842083).

7427125 is an equidigital number, since it uses as much as digits as its factorization.

7427125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59432 (or 59422 counting only the distinct ones).

The product of its digits is 3920, while the sum is 28.

The square root of 7427125 is about 2725.2752154599. The cubic root of 7427125 is about 195.1073264096.

The spelling of 7427125 in words is "seven million, four hundred twenty-seven thousand, one hundred twenty-five".