56020127438591 has 4 divisors (see below), whose sum is σ = 56118236243784. Its totient is φ = 55922018633400.

The previous prime is 56020127438533. The next prime is 56020127438683. The reversal of 56020127438591 is 19583472102065.

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 56020127438591 - 2¹⁰ = 56020127437567 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 (56020127438521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49054401740 + ... + 49054402881.

It is an arithmetic number, because the mean of its divisors is an integer number (14029559060946).

It is a 1-persistent number, because it is pandigital, but 2⋅56020127438591 = 112040254877182 is not.

Almost surely, 2^{56020127438591} is an apocalyptic number.

56020127438591 is a deficient number, since it is larger than the sum of its proper divisors (98108805193).

56020127438591 is an equidigital number, since it uses as much as digits as its factorization.

56020127438591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98108805192.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 56020127438591 in words is "fifty-six trillion, twenty billion, one hundred twenty-seven million, four hundred thirty-eight thousand, five hundred ninety-one".