56355216201 has 6 divisors (see below), whose sum is σ = 81401978970. Its totient is φ = 37570144128.

The previous prime is 56355216179. The next prime is 56355216217. The reversal of 56355216201 is 10261255365.

56355216201 is a `hidden beast` number, since 5 + 6 + 3 + 5 + 5 + 21 + 620 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29097536400 + 27257679801 = 170580^2 + 165099^2 .

It is not a de Polignac number, because 56355216201 - 2²² = 56351021897 is a prime.

It is a super-2 number, since 2×56355216201² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56355216271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3130845336 + ... + 3130845353.

It is an arithmetic number, because the mean of its divisors is an integer number (13566996495).

Almost surely, 2^56355216201 is an apocalyptic number.

It is an amenable number.

56355216201 is a deficient number, since it is larger than the sum of its proper divisors (25046762769).

56355216201 is a wasteful number, since it uses less digits than its factorization.

56355216201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6261690695 (or 6261690692 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 56355216201 in words is "fifty-six billion, three hundred fifty-five million, two hundred sixteen thousand, two hundred one".