7425457 has 8 divisors (see below), whose sum is σ = 8043840. Its totient is φ = 6813840.

The previous prime is 7425449. The next prime is 7425463. The reversal of 7425457 is 7545247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7425457 - 2³ = 7425449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7425437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732 + ... + 3922.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^7425457 is an apocalyptic number.

It is an amenable number.

7425457 is a deficient number, since it is larger than the sum of its proper divisors (618383).

7425457 is a wasteful number, since it uses less digits than its factorization.

7425457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383.

The product of its digits is 39200, while the sum is 34.

The square root of 7425457 is about 2724.9691741376. The cubic root of 7425457 is about 195.0927194391.

The spelling of 7425457 in words is "seven million, four hundred twenty-five thousand, four hundred fifty-seven".