56894561 has 2 divisors, whose sum is σ = 56894562. Its totient is φ = 56894560.

The previous prime is 56894503. The next prime is 56894573. The reversal of 56894561 is 16549865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56776225 + 118336 = 7535^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 56894561 - 2¹⁴ = 56878177 is a prime.

It is not a weakly prime, because it can be changed into another prime (56894261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28447280 + 28447281.

It is an arithmetic number, because the mean of its divisors is an integer number (28447281).

Almost surely, 2^56894561 is an apocalyptic number.

It is an amenable number.

56894561 is a deficient number, since it is larger than the sum of its proper divisors (1).

56894561 is an equidigital number, since it uses as much as digits as its factorization.

56894561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 44.

The square root of 56894561 is about 7542.8483346810. The cubic root of 56894561 is about 384.6126671777.

The spelling of 56894561 in words is "fifty-six million, eight hundred ninety-four thousand, five hundred sixty-one".