56381505033367 has 4 divisors (see below), whose sum is σ = 56423992981216. Its totient is φ = 56339017085520.

The previous prime is 56381505033317. The next prime is 56381505033379. The reversal of 56381505033367 is 76333050518365.

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 56381505033367 - 2²⁷ = 56381370815639 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 (56381505033307) 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, 21243971934 + ... + 21243974587.

It is an arithmetic number, because the mean of its divisors is an integer number (14105998245304).

Almost surely, 2^{56381505033367} is an apocalyptic number.

56381505033367 is a deficient number, since it is larger than the sum of its proper divisors (42487947849).

56381505033367 is a wasteful number, since it uses less digits than its factorization.

56381505033367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42487947848.

The product of its (nonzero) digits is 20412000, while the sum is 55.

The spelling of 56381505033367 in words is "fifty-six trillion, three hundred eighty-one billion, five hundred five million, thirty-three thousand, three hundred sixty-seven".