56304654261421 has 2 divisors, whose sum is σ = 56304654261422. Its totient is φ = 56304654261420.

The previous prime is 56304654261409. The next prime is 56304654261437. The reversal of 56304654261421 is 12416245640365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39608318468196 + 16696335793225 = 6293514^2 + 4086115^2 .

It is a cyclic number.

It is not a de Polignac number, because 56304654261421 - 2⁵ = 56304654261389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56304654261481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28152327130710 + 28152327130711.

It is an arithmetic number, because the mean of its divisors is an integer number (28152327130711).

Almost surely, 2^{56304654261421} is an apocalyptic number.

It is an amenable number.

56304654261421 is a deficient number, since it is larger than the sum of its proper divisors (1).

56304654261421 is an equidigital number, since it uses as much as digits as its factorization.

56304654261421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 56304654261421 in words is "fifty-six trillion, three hundred four billion, six hundred fifty-four million, two hundred sixty-one thousand, four hundred twenty-one".