52142873 has 4 divisors (see below), whose sum is σ = 52173840. Its totient is φ = 52111908.

The previous prime is 52142851. The next prime is 52142887. The reversal of 52142873 is 37824125.

52142873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52142873 - 2¹² = 52138777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52142803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12803 + ... + 16376.

It is an arithmetic number, because the mean of its divisors is an integer number (13043460).

Almost surely, 2^52142873 is an apocalyptic number.

It is an amenable number.

52142873 is a deficient number, since it is larger than the sum of its proper divisors (30967).

52142873 is a wasteful number, since it uses less digits than its factorization.

52142873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30966.

The product of its digits is 13440, while the sum is 32.

The square root of 52142873 is about 7221.0022157593. The cubic root of 52142873 is about 373.5926460723.

Subtracting from 52142873 its sum of digits (32), we obtain a square (52142841 = 7221²).

Adding to 52142873 its reverse (37824125), we get a palindrome (89966998).

The spelling of 52142873 in words is "fifty-two million, one hundred forty-two thousand, eight hundred seventy-three".