56644433 has 2 divisors, whose sum is σ = 56644434. Its totient is φ = 56644432.

The previous prime is 56644387. The next prime is 56644451. The reversal of 56644433 is 33444665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53465344 + 3179089 = 7312^2 + 1783^2 .

It is a cyclic number.

It is not a de Polignac number, because 56644433 - 2⁶ = 56644369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56644393 and 56644402.

It is not a weakly prime, because it can be changed into another prime (56644033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28322216 + 28322217.

It is an arithmetic number, because the mean of its divisors is an integer number (28322217).

Almost surely, 2^56644433 is an apocalyptic number.

It is an amenable number.

56644433 is a deficient number, since it is larger than the sum of its proper divisors (1).

56644433 is an equidigital number, since it uses as much as digits as its factorization.

56644433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 35.

The square root of 56644433 is about 7526.2495972430. The cubic root of 56644433 is about 384.0482094601.

The spelling of 56644433 in words is "fifty-six million, six hundred forty-four thousand, four hundred thirty-three".