56555217740313 has 6 divisors (see below), whose sum is σ = 81690870069354. Its totient is φ = 37703478493536.

The previous prime is 56555217740309. The next prime is 56555217740377. The reversal of 56555217740313 is 31304771255565.

56555217740313 is a `hidden beast` number, since 5 + 6 + 5 + 5 + 5 + 217 + 7 + 403 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55889185472649 + 666032267664 = 7475907^2 + 816108^2 .

It is not a de Polignac number, because 56555217740313 - 2² = 56555217740309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56555217740313.

It is not an unprimeable number, because it can be changed into a prime (56555217742313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3141956541120 + ... + 3141956541137.

It is an arithmetic number, because the mean of its divisors is an integer number (13615145011559).

Almost surely, 2^{56555217740313} is an apocalyptic number.

It is an amenable number.

56555217740313 is a deficient number, since it is larger than the sum of its proper divisors (25135652329041).

56555217740313 is a wasteful number, since it uses less digits than its factorization.

56555217740313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283913082263 (or 6283913082260 counting only the distinct ones).

The product of its (nonzero) digits is 13230000, while the sum is 54.

Adding to 56555217740313 its reverse (31304771255565), we get a palindrome (87859988995878).

The spelling of 56555217740313 in words is "fifty-six trillion, five hundred fifty-five billion, two hundred seventeen million, seven hundred forty thousand, three hundred thirteen".