42057925 has 72 divisors (see below), whose sum is σ = 69266400. Its totient is φ = 25038720.

The previous prime is 42057919. The next prime is 42057931. The reversal of 42057925 is 52975024.

It is an interprime number because it is at equal distance from previous prime (42057919) and next prime (42057931).

It is not a de Polignac number, because 42057925 - 2⁵ = 42057893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 302506 + ... + 302644.

Almost surely, 2^42057925 is an apocalyptic number.

It is an amenable number.

42057925 is a deficient number, since it is larger than the sum of its proper divisors (27208475).

42057925 is a wasteful number, since it uses less digits than its factorization.

42057925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 42057925 is about 6485.2081693651. The cubic root of 42057925 is about 347.7623917503.

The spelling of 42057925 in words is "forty-two million, fifty-seven thousand, nine hundred twenty-five".