56752521317 has 8 divisors (see below), whose sum is σ = 59233650840. Its totient is φ = 54323626240.

The previous prime is 56752521313. The next prime is 56752521337. The reversal of 56752521317 is 71312525765.

56752521317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10154391361 + 46598129956 = 100769^2 + 215866^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56752521317 - 2² = 56752521313 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 (56752521313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13056392 + ... + 13060737.

It is an arithmetic number, because the mean of its divisors is an integer number (7404206355).

Almost surely, 2^56752521317 is an apocalyptic number.

It is an amenable number.

56752521317 is a deficient number, since it is larger than the sum of its proper divisors (2481129523).

56752521317 is a wasteful number, since it uses less digits than its factorization.

56752521317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26117223.

The product of its digits is 441000, while the sum is 44.

The spelling of 56752521317 in words is "fifty-six billion, seven hundred fifty-two million, five hundred twenty-one thousand, three hundred seventeen".