56783740555505 has 8 divisors (see below), whose sum is σ = 68144085153792. Its totient is φ = 45424594786288.

The previous prime is 56783740555351. The next prime is 56783740555541. The reversal of 56783740555505 is 50555504738765.

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 56783740555505 - 2¹² = 56783740551409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299603057 + ... + 299792526.

It is an arithmetic number, because the mean of its divisors is an integer number (8518010644224).

Almost surely, 2^{56783740555505} is an apocalyptic number.

It is an amenable number.

56783740555505 is a deficient number, since it is larger than the sum of its proper divisors (11360344598287).

56783740555505 is a wasteful number, since it uses less digits than its factorization.

56783740555505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599414535.

The product of its (nonzero) digits is 441000000, while the sum is 65.

The spelling of 56783740555505 in words is "fifty-six trillion, seven hundred eighty-three billion, seven hundred forty million, five hundred fifty-five thousand, five hundred five".