56505073 has 2 divisors, whose sum is σ = 56505074. Its totient is φ = 56505072.

The previous prime is 56505061. The next prime is 56505103. The reversal of 56505073 is 37050565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55845729 + 659344 = 7473^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 56505073 - 2⁵ = 56505041 is a prime.

It is not a weakly prime, because it can be changed into another prime (56505013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28252536 + 28252537.

It is an arithmetic number, because the mean of its divisors is an integer number (28252537).

Almost surely, 2^56505073 is an apocalyptic number.

It is an amenable number.

56505073 is a deficient number, since it is larger than the sum of its proper divisors (1).

56505073 is an equidigital number, since it uses as much as digits as its factorization.

56505073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 56505073 is about 7516.9856325525. The cubic root of 56505073 is about 383.7329980761.

The spelling of 56505073 in words is "fifty-six million, five hundred five thousand, seventy-three".