56377105056521 has 8 divisors (see below), whose sum is σ = 57577444856064. Its totient is φ = 55176799712320.

The previous prime is 56377105056511. The next prime is 56377105056539. The reversal of 56377105056521 is 12565050177365.

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 56377105056521 - 2³⁴ = 56359925187337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56377105056511) 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, 5293040 + ... + 11864673.

It is an arithmetic number, because the mean of its divisors is an integer number (7197180607008).

Almost surely, 2^{56377105056521} is an apocalyptic number.

It is an amenable number.

56377105056521 is a deficient number, since it is larger than the sum of its proper divisors (1200339799543).

56377105056521 is a wasteful number, since it uses less digits than its factorization.

56377105056521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17227671.

The product of its (nonzero) digits is 6615000, while the sum is 53.

The spelling of 56377105056521 in words is "fifty-six trillion, three hundred seventy-seven billion, one hundred five million, fifty-six thousand, five hundred twenty-one".