42365525 has 6 divisors (see below), whose sum is σ = 52533282. Its totient is φ = 33892400.

The previous prime is 42365503. The next prime is 42365579. The reversal of 42365525 is 52556324.

It can be written as a sum of positive squares in 3 ways, for example, as 2093809 + 40271716 = 1447^2 + 6346^2 .

It is not a de Polignac number, because 42365525 - 2⁶ = 42365461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42365491 and 42365500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 847286 + ... + 847335.

It is an arithmetic number, because the mean of its divisors is an integer number (8755547).

Almost surely, 2^42365525 is an apocalyptic number.

It is an amenable number.

42365525 is a deficient number, since it is larger than the sum of its proper divisors (10167757).

42365525 is a wasteful number, since it uses less digits than its factorization.

42365525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694631 (or 1694626 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 42365525 is about 6508.8804720935. The cubic root of 42365525 is about 348.6081457832.

The spelling of 42365525 in words is "forty-two million, three hundred sixty-five thousand, five hundred twenty-five".