42525530 has 8 divisors (see below), whose sum is σ = 76545972. Its totient is φ = 17010208.

The previous prime is 42525481. The next prime is 42525541. The reversal of 42525530 is 3552524.

It can be written as a sum of positive squares in 2 ways, for example, as 41770369 + 755161 = 6463^2 + 869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42525530.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2126267 + ... + 2126286.

Almost surely, 2^42525530 is an apocalyptic number.

42525530 is a deficient number, since it is larger than the sum of its proper divisors (34020442).

42525530 is a wasteful number, since it uses less digits than its factorization.

42525530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252560.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 42525530 is about 6521.1601728527. The cubic root of 42525530 is about 349.0464657908.

The spelling of 42525530 in words is "forty-two million, five hundred twenty-five thousand, five hundred thirty".