56486206121 has 2 divisors, whose sum is σ = 56486206122. Its totient is φ = 56486206120.

The previous prime is 56486206081. The next prime is 56486206129. The reversal of 56486206121 is 12160268465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40939856896 + 15546349225 = 202336^2 + 124685^2 .

It is a cyclic number.

It is not a de Polignac number, because 56486206121 - 2³⁰ = 55412464297 is a prime.

It is not a weakly prime, because it can be changed into another prime (56486206129) 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 as a sum of consecutive naturals, namely, 28243103060 + 28243103061.

It is an arithmetic number, because the mean of its divisors is an integer number (28243103061).

Almost surely, 2^56486206121 is an apocalyptic number.

It is an amenable number.

56486206121 is a deficient number, since it is larger than the sum of its proper divisors (1).

56486206121 is an equidigital number, since it uses as much as digits as its factorization.

56486206121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 56486206121 in words is "fifty-six billion, four hundred eighty-six million, two hundred six thousand, one hundred twenty-one".