56446225657 has 2 divisors, whose sum is σ = 56446225658. Its totient is φ = 56446225656.

The previous prime is 56446225643. The next prime is 56446225663. The reversal of 56446225657 is 75652264465.

56446225657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45256605696 + 11189619961 = 212736^2 + 105781^2 .

It is a cyclic number.

It is not a de Polignac number, because 56446225657 - 2¹⁵ = 56446192889 is a prime.

It is not a weakly prime, because it can be changed into another prime (56446225357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28223112828 + 28223112829.

It is an arithmetic number, because the mean of its divisors is an integer number (28223112829).

Almost surely, 2^56446225657 is an apocalyptic number.

It is an amenable number.

56446225657 is a deficient number, since it is larger than the sum of its proper divisors (1).

56446225657 is an equidigital number, since it uses as much as digits as its factorization.

56446225657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096000, while the sum is 52.

The spelling of 56446225657 in words is "fifty-six billion, four hundred forty-six million, two hundred twenty-five thousand, six hundred fifty-seven".