52404173 has 4 divisors (see below), whose sum is σ = 53820540. Its totient is φ = 50987808.

The previous prime is 52404169. The next prime is 52404181. The reversal of 52404173 is 37140425.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18088009 + 34316164 = 4253^2 + 5858^2 .

It is a cyclic number.

It is not a de Polignac number, because 52404173 - 2² = 52404169 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52404103) 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, 708128 + ... + 708201.

It is an arithmetic number, because the mean of its divisors is an integer number (13455135).

Almost surely, 2^52404173 is an apocalyptic number.

It is an amenable number.

52404173 is a deficient number, since it is larger than the sum of its proper divisors (1416367).

52404173 is a wasteful number, since it uses less digits than its factorization.

52404173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416366.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 52404173 is about 7239.0726616052. The cubic root of 52404173 is about 374.2156596004.

Adding to 52404173 its reverse (37140425), we get a palindrome (89544598).

The spelling of 52404173 in words is "fifty-two million, four hundred four thousand, one hundred seventy-three".