42604525 has 6 divisors (see below), whose sum is σ = 52829642. Its totient is φ = 34083600.

The previous prime is 42604469. The next prime is 42604531. The reversal of 42604525 is 52540624.

It can be written as a sum of positive squares in 3 ways, for example, as 14280841 + 28323684 = 3779^2 + 5322^2 .

It is not a de Polignac number, because 42604525 - 2¹¹ = 42602477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42604493 and 42604502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 852066 + ... + 852115.

Almost surely, 2^42604525 is an apocalyptic number.

It is an amenable number.

42604525 is a deficient number, since it is larger than the sum of its proper divisors (10225117).

42604525 is a wasteful number, since it uses less digits than its factorization.

42604525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704191 (or 1704186 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 42604525 is about 6527.2141837081. The cubic root of 42604525 is about 349.2624605129.

The spelling of 42604525 in words is "forty-two million, six hundred four thousand, five hundred twenty-five".