42525422 has 4 divisors (see below), whose sum is σ = 63788136. Its totient is φ = 21262710.

The previous prime is 42525419. The next prime is 42525433. The reversal of 42525422 is 22452524.

42525422 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 a junction number, because it is equal to n+sod(n) for n = 42525391 and 42525400.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 10631354 + ... + 10631357.

It is an arithmetic number, because the mean of its divisors is an integer number (15947034).

Almost surely, 2^42525422 is an apocalyptic number.

42525422 is a deficient number, since it is larger than the sum of its proper divisors (21262714).

42525422 is a wasteful number, since it uses less digits than its factorization.

42525422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21262713.

The product of its digits is 6400, while the sum is 26.

The square root of 42525422 is about 6521.1518921123. The cubic root of 42525422 is about 349.0461703052.

Adding to 42525422 its reverse (22452524), we get a palindrome (64977946).

The spelling of 42525422 in words is "forty-two million, five hundred twenty-five thousand, four hundred twenty-two".