42508325 has 12 divisors (see below), whose sum is σ = 52832928. Its totient is φ = 33927600.

The previous prime is 42508309. The next prime is 42508327. The reversal of 42508325 is 52380524.

It is not a de Polignac number, because 42508325 - 2⁴ = 42508309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42508327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10544 + ... + 14006.

It is an arithmetic number, because the mean of its divisors is an integer number (4402744).

Almost surely, 2^42508325 is an apocalyptic number.

It is an amenable number.

42508325 is a deficient number, since it is larger than the sum of its proper divisors (10324603).

42508325 is a wasteful number, since it uses less digits than its factorization.

42508325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 42508325 is about 6519.8408722913. The cubic root of 42508325 is about 348.9993869771. Note that the first 3 decimals are identical.

Adding to 42508325 its reverse (52380524), we get a palindrome (94888849).

The spelling of 42508325 in words is "forty-two million, five hundred eight thousand, three hundred twenty-five".