56477173 has 2 divisors, whose sum is σ = 56477174. Its totient is φ = 56477172.

The previous prime is 56477159. The next prime is 56477191. The reversal of 56477173 is 37177465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45468049 + 11009124 = 6743^2 + 3318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56477173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56477153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28238586 + 28238587.

It is an arithmetic number, because the mean of its divisors is an integer number (28238587).

Almost surely, 2^56477173 is an apocalyptic number.

It is an amenable number.

56477173 is a deficient number, since it is larger than the sum of its proper divisors (1).

56477173 is an equidigital number, since it uses as much as digits as its factorization.

56477173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 40.

The square root of 56477173 is about 7515.1296063341. The cubic root of 56477173 is about 383.6698302184.

The spelling of 56477173 in words is "fifty-six million, four hundred seventy-seven thousand, one hundred seventy-three".