56648442221 has 16 divisors (see below), whose sum is σ = 68201577600. Its totient is φ = 45964412928.

The previous prime is 56648442197. The next prime is 56648442229. The reversal of 56648442221 is 12224484665.

It is not a de Polignac number, because 56648442221 - 2¹⁴ = 56648425837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56648442229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6221 + ... + 336653.

It is an arithmetic number, because the mean of its divisors is an integer number (4262598600).

Almost surely, 2^56648442221 is an apocalyptic number.

It is an amenable number.

56648442221 is a deficient number, since it is larger than the sum of its proper divisors (11553135379).

56648442221 is a wasteful number, since it uses less digits than its factorization.

56648442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331748.

The product of its digits is 737280, while the sum is 44.

The spelling of 56648442221 in words is "fifty-six billion, six hundred forty-eight million, four hundred forty-two thousand, two hundred twenty-one".