56145773 has 2 divisors, whose sum is σ = 56145774. Its totient is φ = 56145772.

The previous prime is 56145731. The next prime is 56145797. The reversal of 56145773 is 37754165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33895684 + 22250089 = 5822^2 + 4717^2 .

It is a cyclic number.

It is not a de Polignac number, because 56145773 - 2¹⁶ = 56080237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56145673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28072886 + 28072887.

It is an arithmetic number, because the mean of its divisors is an integer number (28072887).

Almost surely, 2^56145773 is an apocalyptic number.

It is an amenable number.

56145773 is a deficient number, since it is larger than the sum of its proper divisors (1).

56145773 is an equidigital number, since it uses as much as digits as its factorization.

56145773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 38.

The square root of 56145773 is about 7493.0483116019. The cubic root of 56145773 is about 382.9179176333.

The spelling of 56145773 in words is "fifty-six million, one hundred forty-five thousand, seven hundred seventy-three".