56438059087 has 4 divisors (see below), whose sum is σ = 56507822640. Its totient is φ = 56368295536.

The previous prime is 56438059037. The next prime is 56438059091. The reversal of 56438059087 is 78095083465.

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 56438059087 - 2¹⁵ = 56438026319 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 (56438059037) 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, 34880563 + ... + 34882180.

It is an arithmetic number, because the mean of its divisors is an integer number (14126955660).

Almost surely, 2^56438059087 is an apocalyptic number.

56438059087 is a deficient number, since it is larger than the sum of its proper divisors (69763553).

56438059087 is an equidigital number, since it uses as much as digits as its factorization.

56438059087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69763552.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 56438059087 in words is "fifty-six billion, four hundred thirty-eight million, fifty-nine thousand, eighty-seven".