53285247 has 12 divisors (see below), whose sum is σ = 77034360. Its totient is φ = 35492688.

The previous prime is 53285237. The next prime is 53285317. The reversal of 53285247 is 74258235.

53285247 is a `hidden beast` number, since 532 + 85 + 2 + 47 = 666.

It is not a de Polignac number, because 53285247 - 2⁷ = 53285119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53285207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14029 + ... + 17417.

It is an arithmetic number, because the mean of its divisors is an integer number (6419530).

Almost surely, 2^53285247 is an apocalyptic number.

53285247 is a deficient number, since it is larger than the sum of its proper divisors (23749113).

53285247 is a wasteful number, since it uses less digits than its factorization.

53285247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142 (or 5139 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 53285247 is about 7299.6744447955. The cubic root of 53285247 is about 376.3012501057.

The spelling of 53285247 in words is "fifty-three million, two hundred eighty-five thousand, two hundred forty-seven".