42302525 has 12 divisors (see below), whose sum is σ = 53121600. Its totient is φ = 33412080.

The previous prime is 42302521. The next prime is 42302539. The reversal of 42302525 is 52520324.

It is not a de Polignac number, because 42302525 - 2² = 42302521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42302525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42302521) 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, 8735 + ... + 12684.

It is an arithmetic number, because the mean of its divisors is an integer number (4426800).

Almost surely, 2^42302525 is an apocalyptic number.

It is an amenable number.

42302525 is a deficient number, since it is larger than the sum of its proper divisors (10819075).

42302525 is a wasteful number, since it uses less digits than its factorization.

42302525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21508 (or 21503 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 42302525 is about 6504.0391296486. The cubic root of 42302525 is about 348.4352598608.

Adding to 42302525 its reverse (52520324), we get a palindrome (94822849).

The spelling of 42302525 in words is "forty-two million, three hundred two thousand, five hundred twenty-five".