56280173 has 4 divisors (see below), whose sum is σ = 56499420. Its totient is φ = 56060928.

The previous prime is 56280157. The next prime is 56280179. The reversal of 56280173 is 37108265.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55383364 + 896809 = 7442^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 56280173 - 2⁴ = 56280157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56280179) 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, 109238 + ... + 109751.

It is an arithmetic number, because the mean of its divisors is an integer number (14124855).

Almost surely, 2^56280173 is an apocalyptic number.

It is an amenable number.

56280173 is a deficient number, since it is larger than the sum of its proper divisors (219247).

56280173 is a wasteful number, since it uses less digits than its factorization.

56280173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219246.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 56280173 is about 7502.0112636546. The cubic root of 56280173 is about 383.2232131493.

The spelling of 56280173 in words is "fifty-six million, two hundred eighty thousand, one hundred seventy-three".