42252163 has 4 divisors (see below), whose sum is σ = 43615168. Its totient is φ = 40889160.

The previous prime is 42252151. The next prime is 42252179. The reversal of 42252163 is 36125224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42252163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42252193) 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, 681456 + ... + 681517.

It is an arithmetic number, because the mean of its divisors is an integer number (10903792).

Almost surely, 2^42252163 is an apocalyptic number.

42252163 is a deficient number, since it is larger than the sum of its proper divisors (1363005).

42252163 is a wasteful number, since it uses less digits than its factorization.

42252163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363004.

The product of its digits is 2880, while the sum is 25.

The square root of 42252163 is about 6500.1663824859. The cubic root of 42252163 is about 348.2969319093.

Adding to 42252163 its reverse (36125224), we get a palindrome (78377387).

The spelling of 42252163 in words is "forty-two million, two hundred fifty-two thousand, one hundred sixty-three".