52085287 has 4 divisors (see below), whose sum is σ = 52149096. Its totient is φ = 52021480.

The previous prime is 52085269. The next prime is 52085311. The reversal of 52085287 is 78258025.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52085287 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 (52085237) 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, 30664 + ... + 32317.

It is an arithmetic number, because the mean of its divisors is an integer number (13037274).

Almost surely, 2^52085287 is an apocalyptic number.

52085287 is a deficient number, since it is larger than the sum of its proper divisors (63809).

52085287 is an equidigital number, since it uses as much as digits as its factorization.

52085287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63808.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 52085287 is about 7217.0137175982. The cubic root of 52085287 is about 373.4550649126.

The spelling of 52085287 in words is "fifty-two million, eighty-five thousand, two hundred eighty-seven".