42253522 has 12 divisors (see below), whose sum is σ = 65643786. Its totient is φ = 20397440.

The previous prime is 42253501. The next prime is 42253529. The reversal of 42253522 is 22535224.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 36108081 + 6145441 = 6009^2 + 2479^2 .

It is not an unprimeable number, because it can be changed into a prime (42253529) 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, 10879 + ... + 14242.

Almost surely, 2^42253522 is an apocalyptic number.

42253522 is a deficient number, since it is larger than the sum of its proper divisors (23390264).

42253522 is a wasteful number, since it uses less digits than its factorization.

42253522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25181 (or 25152 counting only the distinct ones).

The product of its digits is 4800, while the sum is 25.

The square root of 42253522 is about 6500.2709174311. The cubic root of 42253522 is about 348.3006660807.

Adding to 42253522 its reverse (22535224), we get a palindrome (64788746).

The spelling of 42253522 in words is "forty-two million, two hundred fifty-three thousand, five hundred twenty-two".