42242575 has 6 divisors (see below), whose sum is σ = 52380824. Its totient is φ = 33794040.

The previous prime is 42242573. The next prime is 42242579. The reversal of 42242575 is 57524224.

It is not a de Polignac number, because 42242575 - 2¹ = 42242573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242573) 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, 844827 + ... + 844876.

Almost surely, 2^42242575 is an apocalyptic number.

42242575 is a deficient number, since it is larger than the sum of its proper divisors (10138249).

42242575 is a wasteful number, since it uses less digits than its factorization.

42242575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689713 (or 1689708 counting only the distinct ones).

The product of its digits is 22400, while the sum is 31.

The square root of 42242575 is about 6499.4288210580. The cubic root of 42242575 is about 348.2705843539.

Adding to 42242575 its reverse (57524224), we get a palindrome (99766799).

It can be divided in two parts, 422425 and 75, that added together give a square (422500 = 650²).

The spelling of 42242575 in words is "forty-two million, two hundred forty-two thousand, five hundred seventy-five".