53247187 has 8 divisors (see below), whose sum is σ = 61538400. Its totient is φ = 45127104.

The previous prime is 53247157. The next prime is 53247191. The reversal of 53247187 is 78174235.

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-53247187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53247127) 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, 42112 + ... + 43357.

It is an arithmetic number, because the mean of its divisors is an integer number (7692300).

Almost surely, 2^53247187 is an apocalyptic number.

53247187 is a deficient number, since it is larger than the sum of its proper divisors (8291213).

53247187 is an equidigital number, since it uses as much as digits as its factorization.

53247187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85565.

The product of its digits is 47040, while the sum is 37.

The square root of 53247187 is about 7297.0670135336. The cubic root of 53247187 is about 376.2116353270.

The spelling of 53247187 in words is "fifty-three million, two hundred forty-seven thousand, one hundred eighty-seven".