56830721173551 has 24 divisors (see below), whose sum is σ = 90792623623520. Its totient is φ = 34027541989056.

The previous prime is 56830721173459. The next prime is 56830721173607. The reversal of 56830721173551 is 15537112703865.

56830721173551 is a `hidden beast` number, since 5 + 6 + 8 + 3 + 0 + 7 + 2 + 11 + 73 + 551 = 666.

It is not a de Polignac number, because 56830721173551 - 2¹⁰ = 56830721172527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56830721173451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6563950531 + ... + 6563959188.

Almost surely, 2^{56830721173551} is an apocalyptic number.

56830721173551 is a deficient number, since it is larger than the sum of its proper divisors (33961902449969).

56830721173551 is a wasteful number, since it uses less digits than its factorization.

56830721173551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13127909775 (or 13127909772 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 56830721173551 in words is "fifty-six trillion, eight hundred thirty billion, seven hundred twenty-one million, one hundred seventy-three thousand, five hundred fifty-one".