42528017 has 4 divisors (see below), whose sum is σ = 48603456. Its totient is φ = 36452580.

The previous prime is 42527993. The next prime is 42528019. The reversal of 42528017 is 71082524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42528017 - 2¹⁰ = 42526993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42528019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037709 + ... + 3037722.

It is an arithmetic number, because the mean of its divisors is an integer number (12150864).

Almost surely, 2^42528017 is an apocalyptic number.

It is an amenable number.

42528017 is a deficient number, since it is larger than the sum of its proper divisors (6075439).

42528017 is an equidigital number, since it uses as much as digits as its factorization.

42528017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075438.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 42528017 is about 6521.3508569927. The cubic root of 42528017 is about 349.0532700300.

The spelling of 42528017 in words is "forty-two million, five hundred twenty-eight thousand, seventeen".