56378537593 has 8 divisors (see below), whose sum is σ = 66511086080. Its totient is φ = 46765607040.

The previous prime is 56378537557. The next prime is 56378537617. The reversal of 56378537593 is 39573587365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56378537593 - 2¹³ = 56378529401 is a prime.

It is a super-2 number, since 2×56378537593² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56378537533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129904248 + ... + 129904681.

It is an arithmetic number, because the mean of its divisors is an integer number (8313885760).

Almost surely, 2^56378537593 is an apocalyptic number.

It is an amenable number.

56378537593 is a deficient number, since it is larger than the sum of its proper divisors (10132548487).

56378537593 is a wasteful number, since it uses less digits than its factorization.

56378537593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259808967.

The product of its digits is 71442000, while the sum is 61.

The spelling of 56378537593 in words is "fifty-six billion, three hundred seventy-eight million, five hundred thirty-seven thousand, five hundred ninety-three".