52856891 has 8 divisors (see below), whose sum is σ = 55311744. Its totient is φ = 50448960.

The previous prime is 52856857. The next prime is 52856939. The reversal of 52856891 is 19865825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52856891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52856851) 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, 9416 + ... + 13941.

It is an arithmetic number, because the mean of its divisors is an integer number (6913968).

Almost surely, 2^52856891 is an apocalyptic number.

52856891 is a deficient number, since it is larger than the sum of its proper divisors (2454853).

52856891 is a wasteful number, since it uses less digits than its factorization.

52856891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23461.

The product of its digits is 172800, while the sum is 44.

The square root of 52856891 is about 7270.2744790001. The cubic root of 52856891 is about 375.2901836875.

The spelling of 52856891 in words is "fifty-two million, eight hundred fifty-six thousand, eight hundred ninety-one".