52487473 has 4 divisors (see below), whose sum is σ = 52556148. Its totient is φ = 52418800.

The previous prime is 52487431. The next prime is 52487489. The reversal of 52487473 is 37478425.

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 18766224 + 33721249 = 4332^2 + 5807^2 .

It is a cyclic number.

It is not a de Polignac number, because 52487473 - 2¹³ = 52479281 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52484473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33178 + ... + 34723.

It is an arithmetic number, because the mean of its divisors is an integer number (13139037).

Almost surely, 2^52487473 is an apocalyptic number.

It is an amenable number.

52487473 is a deficient number, since it is larger than the sum of its proper divisors (68675).

52487473 is an equidigital number, since it uses as much as digits as its factorization.

52487473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68674.

The product of its digits is 188160, while the sum is 40.

The square root of 52487473 is about 7244.8238763962. The cubic root of 52487473 is about 374.4138350540.

It can be divided in two parts, 5248 and 7473, that added together give a palindrome (12721).

The spelling of 52487473 in words is "fifty-two million, four hundred eighty-seven thousand, four hundred seventy-three".