56537425361 has 4 divisors (see below), whose sum is σ = 56548835892. Its totient is φ = 56526014832.

The previous prime is 56537425331. The next prime is 56537425363. The reversal of 56537425361 is 16352473565.

56537425361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 54047415361 + 2490010000 = 232481^2 + 49900^2 .

It is a cyclic number.

It is not a de Polignac number, because 56537425361 - 2¹⁰ = 56537424337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56537425363) 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, 5697830 + ... + 5707743.

It is an arithmetic number, because the mean of its divisors is an integer number (14137208973).

Almost surely, 2^56537425361 is an apocalyptic number.

It is an amenable number.

56537425361 is a deficient number, since it is larger than the sum of its proper divisors (11410531).

56537425361 is a wasteful number, since it uses less digits than its factorization.

56537425361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11410530.

The product of its digits is 2268000, while the sum is 47.

The spelling of 56537425361 in words is "fifty-six billion, five hundred thirty-seven million, four hundred twenty-five thousand, three hundred sixty-one".