56720410721603 has 4 divisors (see below), whose sum is σ = 56720523301008. Its totient is φ = 56720298142200.

The previous prime is 56720410721549. The next prime is 56720410721629. The reversal of 56720410721603 is 30612701402765.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56720410721603 - 2¹² = 56720410717507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56720410721003) 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 3 ways as a sum of consecutive naturals, for example, 55530551 + ... + 56542752.

It is an arithmetic number, because the mean of its divisors is an integer number (14180130825252).

Almost surely, 2^{56720410721603} is an apocalyptic number.

56720410721603 is a deficient number, since it is larger than the sum of its proper divisors (112579405).

56720410721603 is a wasteful number, since it uses less digits than its factorization.

56720410721603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112579404.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 56720410721603 in words is "fifty-six trillion, seven hundred twenty billion, four hundred ten million, seven hundred twenty-one thousand, six hundred three".