52173811 has 4 divisors (see below), whose sum is σ = 53583952. Its totient is φ = 50763672.

The previous prime is 52173809. The next prime is 52173817. The reversal of 52173811 is 11837125.

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

It is a cyclic number.

It is not a de Polignac number, because 52173811 - 2¹ = 52173809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52173811.

It is not an unprimeable number, because it can be changed into a prime (52173817) 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, 705015 + ... + 705088.

It is an arithmetic number, because the mean of its divisors is an integer number (13395988).

Almost surely, 2^52173811 is an apocalyptic number.

52173811 is a deficient number, since it is larger than the sum of its proper divisors (1410141).

52173811 is a wasteful number, since it uses less digits than its factorization.

52173811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410140.

The product of its digits is 1680, while the sum is 28.

The square root of 52173811 is about 7223.1441215028. The cubic root of 52173811 is about 373.6665195372. Note that the first 3 decimals are identical.

The spelling of 52173811 in words is "fifty-two million, one hundred seventy-three thousand, eight hundred eleven".