42002825 has 12 divisors (see below), whose sum is σ = 54825360. Its totient is φ = 31833360.

The previous prime is 42002809. The next prime is 42002827. The reversal of 42002825 is 52820024.

It is not a de Polignac number, because 42002825 - 2⁴ = 42002809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42002825.

It is not an unprimeable number, because it can be changed into a prime (42002827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43739 + ... + 44688.

It is an arithmetic number, because the mean of its divisors is an integer number (4568780).

Almost surely, 2^42002825 is an apocalyptic number.

It is an amenable number.

42002825 is a deficient number, since it is larger than the sum of its proper divisors (12822535).

42002825 is a wasteful number, since it uses less digits than its factorization.

42002825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88456 (or 88451 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 42002825 is about 6480.9586482248. The cubic root of 42002825 is about 347.6104577864.

Adding to 42002825 its reverse (52820024), we get a palindrome (94822849).

The spelling of 42002825 in words is "forty-two million, two thousand, eight hundred twenty-five".