52657647473 has 4 divisors (see below), whose sum is σ = 52658235108. Its totient is φ = 52657059840.

The previous prime is 52657647461. The next prime is 52657647481. The reversal of 52657647473 is 37474675625.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 46032989809 + 6624657664 = 214553^2 + 81392^2 .

It is a cyclic number.

It is not a de Polignac number, because 52657647473 - 2⁶ = 52657647409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52657647433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128336 + ... + 348977.

It is an arithmetic number, because the mean of its divisors is an integer number (13164558777).

Almost surely, 2^52657647473 is an apocalyptic number.

It is an amenable number.

52657647473 is a deficient number, since it is larger than the sum of its proper divisors (587635).

52657647473 is a wasteful number, since it uses less digits than its factorization.

52657647473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587634.

The product of its digits is 29635200, while the sum is 56.

The spelling of 52657647473 in words is "fifty-two billion, six hundred fifty-seven million, six hundred forty-seven thousand, four hundred seventy-three".