42425825 has 24 divisors (see below), whose sum is σ = 58496256. Its totient is φ = 30312000.

The previous prime is 42425809. The next prime is 42425827. The reversal of 42425825 is 52852424.

It is not a de Polignac number, because 42425825 - 2⁴ = 42425809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42425791 and 42425800.

It is not an unprimeable number, because it can be changed into a prime (42425827) 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, 7970 + ... + 12180.

It is an arithmetic number, because the mean of its divisors is an integer number (2437344).

Almost surely, 2^42425825 is an apocalyptic number.

It is an amenable number.

42425825 is a deficient number, since it is larger than the sum of its proper divisors (16070431).

42425825 is a wasteful number, since it uses less digits than its factorization.

42425825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265 (or 4260 counting only the distinct ones).

The product of its digits is 25600, while the sum is 32.

The square root of 42425825 is about 6513.5109580011. The cubic root of 42425825 is about 348.7734618492.

The spelling of 42425825 in words is "forty-two million, four hundred twenty-five thousand, eight hundred twenty-five".