42530025 has 12 divisors (see below), whose sum is σ = 70316432. Its totient is φ = 22682640.

The previous prime is 42530023. The next prime is 42530027. The reversal of 42530025 is 52003524.

42530025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42530023) and next prime (42530027).

It is not a de Polignac number, because 42530025 - 2¹ = 42530023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42529983 and 42530010.

It is not an unprimeable number, because it can be changed into a prime (42530021) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 283459 + ... + 283608.

Almost surely, 2^42530025 is an apocalyptic number.

It is an amenable number.

42530025 is a deficient number, since it is larger than the sum of its proper divisors (27786407).

42530025 is a wasteful number, since it uses less digits than its factorization.

42530025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567080 (or 567075 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 42530025 is about 6521.5048110080. The cubic root of 42530025 is about 349.0587635688.

Adding to 42530025 its reverse (52003524), we get a palindrome (94533549).

The spelling of 42530025 in words is "forty-two million, five hundred thirty thousand, twenty-five".