42075525 has 24 divisors (see below), whose sum is σ = 71812864. Its totient is φ = 21715200.

The previous prime is 42075511. The next prime is 42075559. The reversal of 42075525 is 52557024.

It is not a de Polignac number, because 42075525 - 2¹⁷ = 41944453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42075492 and 42075501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6724 + ... + 11373.

Almost surely, 2^42075525 is an apocalyptic number.

It is an amenable number.

42075525 is a deficient number, since it is larger than the sum of its proper divisors (29737339).

42075525 is a wasteful number, since it uses less digits than its factorization.

42075525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18141 (or 18136 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 42075525 is about 6486.5649615185. The cubic root of 42075525 is about 347.8108944168.

The spelling of 42075525 in words is "forty-two million, seventy-five thousand, five hundred twenty-five".