42550525 has 12 divisors (see below), whose sum is σ = 52864672. Its totient is φ = 33974640.

The previous prime is 42550499. The next prime is 42550537. The reversal of 42550525 is 52505524.

42550525 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 42550525 - 2⁵ = 42550493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42550493 and 42550502.

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 11 ways as a sum of consecutive naturals, for example, 14752 + ... + 17398.

Almost surely, 2^42550525 is an apocalyptic number.

It is an amenable number.

42550525 is a deficient number, since it is larger than the sum of its proper divisors (10314147).

42550525 is a wasteful number, since it uses less digits than its factorization.

42550525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300 (or 3295 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 42550525 is about 6523.0763447932. The cubic root of 42550525 is about 349.1148381126.

The spelling of 42550525 in words is "forty-two million, five hundred fifty thousand, five hundred twenty-five".