42202525 has 6 divisors (see below), whose sum is σ = 52331162. Its totient is φ = 33762000.

The previous prime is 42202513. The next prime is 42202529. The reversal of 42202525 is 52520224.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7851204 + 34351321 = 2802^2 + 5861^2 .

It is not a de Polignac number, because 42202525 - 2⁷ = 42202397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42202496 and 42202505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42202529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 844026 + ... + 844075.

Almost surely, 2^42202525 is an apocalyptic number.

It is an amenable number.

42202525 is a deficient number, since it is larger than the sum of its proper divisors (10128637).

42202525 is a wasteful number, since it uses less digits than its factorization.

42202525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688111 (or 1688106 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 42202525 is about 6496.3470504584. The cubic root of 42202525 is about 348.1604849474.

Adding to 42202525 its reverse (52520224), we get a palindrome (94722749).

The spelling of 42202525 in words is "forty-two million, two hundred two thousand, five hundred twenty-five".