56773556217 has 24 divisors (see below), whose sum is σ = 94094844480. Its totient is φ = 32312772000.

The previous prime is 56773556207. The next prime is 56773556221. The reversal of 56773556217 is 71265537765.

56773556217 is a `hidden beast` number, since 5 + 6 + 7 + 7 + 3 + 5 + 5 + 621 + 7 = 666.

It is not a de Polignac number, because 56773556217 - 2⁶ = 56773556153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56773556207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1779342 + ... + 1810967.

It is an arithmetic number, because the mean of its divisors is an integer number (3920618520).

Almost surely, 2^56773556217 is an apocalyptic number.

It is an amenable number.

56773556217 is a deficient number, since it is larger than the sum of its proper divisors (37321288263).

56773556217 is a wasteful number, since it uses less digits than its factorization.

56773556217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3590573 (or 3590570 counting only the distinct ones).

The product of its digits is 9261000, while the sum is 54.

The spelling of 56773556217 in words is "fifty-six billion, seven hundred seventy-three million, five hundred fifty-six thousand, two hundred seventeen".