42425530 has 16 divisors (see below), whose sum is σ = 87275520. Its totient is φ = 14545872.

The previous prime is 42425519. The next prime is 42425531. The reversal of 42425530 is 3552424.

It is a junction number, because it is equal to n+sod(n) for n = 42425495 and 42425504.

It is not an unprimeable number, because it can be changed into a prime (42425531) 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, 302970 + ... + 303109.

It is an arithmetic number, because the mean of its divisors is an integer number (5454720).

Almost surely, 2^42425530 is an apocalyptic number.

42425530 is an abundant number, since it is smaller than the sum of its proper divisors (44849990).

42425530 is a wasteful number, since it uses less digits than its factorization.

42425530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606093.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 42425530 is about 6513.4883127246. The cubic root of 42425530 is about 348.7726534704.

Adding to 42425530 its reverse (3552424), we get a palindrome (45977954).

The spelling of 42425530 in words is "forty-two million, four hundred twenty-five thousand, five hundred thirty".