56173207 has 2 divisors, whose sum is σ = 56173208. Its totient is φ = 56173206.

The previous prime is 56173189. The next prime is 56173211. The reversal of 56173207 is 70237165.

56173207 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 is a cyclic number.

It is not a de Polignac number, because 56173207 - 2²³ = 47784599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56173217) 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, 28086603 + 28086604.

It is an arithmetic number, because the mean of its divisors is an integer number (28086604).

Almost surely, 2^56173207 is an apocalyptic number.

56173207 is a deficient number, since it is larger than the sum of its proper divisors (1).

56173207 is an equidigital number, since it uses as much as digits as its factorization.

56173207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 56173207 is about 7494.8787181648. The cubic root of 56173207 is about 382.9802747149.

The spelling of 56173207 in words is "fifty-six million, one hundred seventy-three thousand, two hundred seven".