42568425 has 72 divisors (see below), whose sum is σ = 83566080. Its totient is φ = 20620800.

The previous prime is 42568411. The next prime is 42568429. The reversal of 42568425 is 52486524.

It is a happy number.

It is not a de Polignac number, because 42568425 - 2⁹ = 42567913 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42568425.

It is not an unprimeable number, because it can be changed into a prime (42568429) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 118396 + ... + 118754.

It is an arithmetic number, because the mean of its divisors is an integer number (1160640).

Almost surely, 2^42568425 is an apocalyptic number.

42568425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42568425 is a deficient number, since it is larger than the sum of its proper divisors (40997655).

42568425 is a wasteful number, since it uses less digits than its factorization.

42568425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 415 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 42568425 is about 6524.4482525345. The cubic root of 42568425 is about 349.1637860360.

The spelling of 42568425 in words is "forty-two million, five hundred sixty-eight thousand, four hundred twenty-five".