42748225 has 24 divisors (see below), whose sum is σ = 58940672. Its totient is φ = 30542400.

The previous prime is 42748219. The next prime is 42748229. The reversal of 42748225 is 52284724.

It is not a de Polignac number, because 42748225 - 2⁹ = 42747713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42748229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7954 + ... + 12196.

Almost surely, 2^42748225 is an apocalyptic number.

It is an amenable number.

42748225 is a deficient number, since it is larger than the sum of its proper divisors (16192447).

42748225 is a wasteful number, since it uses less digits than its factorization.

42748225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297 (or 4292 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 42748225 is about 6538.2126762595. The cubic root of 42748225 is about 349.6546934496.

The spelling of 42748225 in words is "forty-two million, seven hundred forty-eight thousand, two hundred twenty-five".