56873128 has 32 divisors (see below), whose sum is σ = 115184160. Its totient is φ = 26170560.

The previous prime is 56873111. The next prime is 56873129. The reversal of 56873128 is 82137865.

It is not an unprimeable number, because it can be changed into a prime (56873129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47983 + ... + 49153.

It is an arithmetic number, because the mean of its divisors is an integer number (3599505).

Almost surely, 2^56873128 is an apocalyptic number.

It is an amenable number.

56873128 is an abundant number, since it is smaller than the sum of its proper divisors (58311032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56873128 is a wasteful number, since it uses less digits than its factorization.

56873128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657 (or 1653 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 56873128 is about 7541.4274510864. The cubic root of 56873128 is about 384.5643647360.

The spelling of 56873128 in words is "fifty-six million, eight hundred seventy-three thousand, one hundred twenty-eight".