56924221 has 2 divisors, whose sum is σ = 56924222. Its totient is φ = 56924220.

The previous prime is 56924123. The next prime is 56924237. The reversal of 56924221 is 12242965.

56924221 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., 39200121 + 17724100 = 6261^2 + 4210^2 .

It is a cyclic number.

It is not a de Polignac number, because 56924221 - 2⁹ = 56923709 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56924251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28462110 + 28462111.

It is an arithmetic number, because the mean of its divisors is an integer number (28462111).

Almost surely, 2^56924221 is an apocalyptic number.

It is an amenable number.

56924221 is a deficient number, since it is larger than the sum of its proper divisors (1).

56924221 is an equidigital number, since it uses as much as digits as its factorization.

56924221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 56924221 is about 7544.8141792890. The cubic root of 56924221 is about 384.6794903782.

The spelling of 56924221 in words is "fifty-six million, nine hundred twenty-four thousand, two hundred twenty-one".