42165524 has 12 divisors (see below), whose sum is σ = 74371584. Its totient is φ = 20916504.

The previous prime is 42165521. The next prime is 42165553. The reversal of 42165524 is 42556124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42165521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40994 + ... + 42009.

It is an arithmetic number, because the mean of its divisors is an integer number (6197632).

Almost surely, 2^42165524 is an apocalyptic number.

It is an amenable number.

42165524 is a deficient number, since it is larger than the sum of its proper divisors (32206060).

42165524 is a wasteful number, since it uses less digits than its factorization.

42165524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83134 (or 83132 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 42165524 is about 6493.4985947484. The cubic root of 42165524 is about 348.0587054703.

The spelling of 42165524 in words is "forty-two million, one hundred sixty-five thousand, five hundred twenty-four".