56173307 has 4 divisors (see below), whose sum is σ = 56200656. Its totient is φ = 56145960.

The previous prime is 56173303. The next prime is 56173309. The reversal of 56173307 is 70337165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70337165 = 5 ⋅14067433.

It is a cyclic number.

It is not a de Polignac number, because 56173307 - 2² = 56173303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56173301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10319 + ... + 14792.

It is an arithmetic number, because the mean of its divisors is an integer number (14050164).

Almost surely, 2^56173307 is an apocalyptic number.

56173307 is a deficient number, since it is larger than the sum of its proper divisors (27349).

56173307 is a wasteful number, since it uses less digits than its factorization.

56173307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27348.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 56173307 is about 7494.8853893839. The cubic root of 56173307 is about 382.9805019763.

The spelling of 56173307 in words is "fifty-six million, one hundred seventy-three thousand, three hundred seven".