56523741387 has 4 divisors (see below), whose sum is σ = 75364988520. Its totient is φ = 37682494256.

The previous prime is 56523741367. The next prime is 56523741389. The reversal of 56523741387 is 78314732565.

56523741387 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56523741387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56523741389) 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, 9420623562 + ... + 9420623567.

It is an arithmetic number, because the mean of its divisors is an integer number (18841247130).

Almost surely, 2^56523741387 is an apocalyptic number.

56523741387 is a deficient number, since it is larger than the sum of its proper divisors (18841247133).

56523741387 is a wasteful number, since it uses less digits than its factorization.

56523741387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18841247132.

The product of its digits is 4233600, while the sum is 51.

The spelling of 56523741387 in words is "fifty-six billion, five hundred twenty-three million, seven hundred forty-one thousand, three hundred eighty-seven".