56001630213257 has 2 divisors, whose sum is σ = 56001630213258. Its totient is φ = 56001630213256.

The previous prime is 56001630213253. The next prime is 56001630213283. The reversal of 56001630213257 is 75231203610065.

56001630213257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38238937207696 + 17762693005561 = 6183764^2 + 4214581^2 .

It is a cyclic number.

It is not a de Polignac number, because 56001630213257 - 2² = 56001630213253 is a prime.

It is not a weakly prime, because it can be changed into another prime (56001630213251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28000815106628 + 28000815106629.

It is an arithmetic number, because the mean of its divisors is an integer number (28000815106629).

Almost surely, 2^{56001630213257} is an apocalyptic number.

It is an amenable number.

56001630213257 is a deficient number, since it is larger than the sum of its proper divisors (1).

56001630213257 is an equidigital number, since it uses as much as digits as its factorization.

56001630213257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 56001630213257 in words is "fifty-six trillion, one billion, six hundred thirty million, two hundred thirteen thousand, two hundred fifty-seven".