42424525 has 24 divisors (see below), whose sum is σ = 61808544. Its totient is φ = 28478400.

The previous prime is 42424519. The next prime is 42424561. The reversal of 42424525 is 52542424.

42424525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42424525 - 2³ = 42424517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42424493 and 42424502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2359 + ... + 9508.

It is an arithmetic number, because the mean of its divisors is an integer number (2575356).

Almost surely, 2^42424525 is an apocalyptic number.

It is an amenable number.

42424525 is a deficient number, since it is larger than the sum of its proper divisors (19384019).

42424525 is a wasteful number, since it uses less digits than its factorization.

42424525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11901 (or 11896 counting only the distinct ones).

The product of its digits is 12800, while the sum is 28.

The square root of 42424525 is about 6513.4111646663. The cubic root of 42424525 is about 348.7698994739.

Adding to 42424525 its reverse (52542424), we get a palindrome (94966949).

The spelling of 42424525 in words is "forty-two million, four hundred twenty-four thousand, five hundred twenty-five".