52170287 has 16 divisors (see below), whose sum is σ = 57748320. Its totient is φ = 46835712.

The previous prime is 52170281. The next prime is 52170301. The reversal of 52170287 is 78207125.

52170287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 52170287 - 2⁴ = 52170271 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 (52170281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77183 + ... + 77855.

It is an arithmetic number, because the mean of its divisors is an integer number (3609270).

Almost surely, 2^52170287 is an apocalyptic number.

52170287 is a deficient number, since it is larger than the sum of its proper divisors (5578033).

52170287 is a wasteful number, since it uses less digits than its factorization.

52170287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 52170287 is about 7222.9001792909. The cubic root of 52170287 is about 373.6581064372.

The spelling of 52170287 in words is "fifty-two million, one hundred seventy thousand, two hundred eighty-seven".