56135521015759 has 4 divisors (see below), whose sum is σ = 56135549400480. Its totient is φ = 56135492631040.

The previous prime is 56135521015723. The next prime is 56135521015771. The reversal of 56135521015759 is 95751012553165.

56135521015759 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 not a de Polignac number, because 56135521015759 - 2³⁵ = 56101161277391 is a prime.

It is a super-2 number, since 2×56135521015759² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56135521015859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10984114 + ... + 15261775.

It is an arithmetic number, because the mean of its divisors is an integer number (14033887350120).

Almost surely, 2^{56135521015759} is an apocalyptic number.

56135521015759 is a deficient number, since it is larger than the sum of its proper divisors (28384721).

56135521015759 is a wasteful number, since it uses less digits than its factorization.

56135521015759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28384720.

The product of its (nonzero) digits is 7087500, while the sum is 55.

The spelling of 56135521015759 in words is "fifty-six trillion, one hundred thirty-five billion, five hundred twenty-one million, fifteen thousand, seven hundred fifty-nine".