52855287 has 8 divisors (see below), whose sum is σ = 70642800. Its totient is φ = 35152320.

The previous prime is 52855267. The next prime is 52855291. The reversal of 52855287 is 78255825.

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

It is a de Polignac number, because none of the positive numbers 2^k-52855287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52855247) 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, 19662 + ... + 22187.

It is an arithmetic number, because the mean of its divisors is an integer number (8830350).

Almost surely, 2^52855287 is an apocalyptic number.

52855287 is a deficient number, since it is larger than the sum of its proper divisors (17787513).

52855287 is a wasteful number, since it uses less digits than its factorization.

52855287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42273.

The product of its digits is 224000, while the sum is 42.

The square root of 52855287 is about 7270.1641659594. The cubic root of 52855287 is about 375.2863874525.

The spelling of 52855287 in words is "fifty-two million, eight hundred fifty-five thousand, two hundred eighty-seven".