42208625 has 8 divisors (see below), whose sum is σ = 52676520. Its totient is φ = 33766800.

The previous prime is 42208619. The next prime is 42208627. The reversal of 42208625 is 52680224.

It can be written as a sum of positive squares in 4 ways, for example, as 10609 + 42198016 = 103^2 + 6496^2 .

It is not a de Polignac number, because 42208625 - 2⁶ = 42208561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42208627) 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, 168710 + ... + 168959.

It is an arithmetic number, because the mean of its divisors is an integer number (6584565).

Almost surely, 2^42208625 is an apocalyptic number.

It is an amenable number.

42208625 is a deficient number, since it is larger than the sum of its proper divisors (10467895).

42208625 is an equidigital number, since it uses as much as digits as its factorization.

42208625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337684 (or 337674 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 42208625 is about 6496.8165281159. The cubic root of 42208625 is about 348.1772586408.

Adding to 42208625 its reverse (52680224), we get a palindrome (94888849).

The spelling of 42208625 in words is "forty-two million, two hundred eight thousand, six hundred twenty-five".