56224215641 has 4 divisors (see below), whose sum is σ = 61335507984. Its totient is φ = 51112923300.

The previous prime is 56224215601. The next prime is 56224215643. The reversal of 56224215641 is 14651242265.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56224215641 - 2¹⁰ = 56224214617 is a prime.

It is a super-2 number, since 2×56224215641² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56224215595 and 56224215604.

It is not an unprimeable number, because it can be changed into a prime (56224215643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2555646155 + ... + 2555646176.

It is an arithmetic number, because the mean of its divisors is an integer number (15333876996).

Almost surely, 2^56224215641 is an apocalyptic number.

It is an amenable number.

56224215641 is a deficient number, since it is larger than the sum of its proper divisors (5111292343).

56224215641 is a wasteful number, since it uses less digits than its factorization.

56224215641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111292342.

The product of its digits is 115200, while the sum is 38.

The spelling of 56224215641 in words is "fifty-six billion, two hundred twenty-four million, two hundred fifteen thousand, six hundred forty-one".