42569925 has 24 divisors (see below), whose sum is σ = 71019264. Its totient is φ = 22498560.

The previous prime is 42569911. The next prime is 42569939. The reversal of 42569925 is 52996524.

It is an interprime number because it is at equal distance from previous prime (42569911) and next prime (42569939).

It is not a de Polignac number, because 42569925 - 2⁵ = 42569893 is a prime.

It is a Curzon number.

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, 5964 + ... + 10986.

It is an arithmetic number, because the mean of its divisors is an integer number (2959136).

Almost surely, 2^42569925 is an apocalyptic number.

It is an amenable number.

42569925 is a deficient number, since it is larger than the sum of its proper divisors (28449339).

42569925 is a wasteful number, since it uses less digits than its factorization.

42569925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5149 (or 5144 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 42569925 is about 6524.5632037708. The cubic root of 42569925 is about 349.1678871942.

The spelling of 42569925 in words is "forty-two million, five hundred sixty-nine thousand, nine hundred twenty-five".