42525115 has 4 divisors (see below), whose sum is σ = 51030144. Its totient is φ = 34020088.

The previous prime is 42525103. The next prime is 42525127. The reversal of 42525115 is 51152524.

42525115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42525103) and next prime (42525127).

It is a cyclic number.

It is not a de Polignac number, because 42525115 - 2¹⁵ = 42492347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42525115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4252507 + ... + 4252516.

It is an arithmetic number, because the mean of its divisors is an integer number (12757536).

Almost surely, 2^42525115 is an apocalyptic number.

42525115 is a deficient number, since it is larger than the sum of its proper divisors (8505029).

42525115 is an equidigital number, since it uses as much as digits as its factorization.

42525115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8505028.

The product of its digits is 2000, while the sum is 25.

The square root of 42525115 is about 6521.1283532837. The cubic root of 42525115 is about 349.0453303571.

Adding to 42525115 its reverse (51152524), we get a palindrome (93677639).

The spelling of 42525115 in words is "forty-two million, five hundred twenty-five thousand, one hundred fifteen".