53163287 has 4 divisors (see below), whose sum is σ = 53836320. Its totient is φ = 52490256.

The previous prime is 53163283. The next prime is 53163289. The reversal of 53163287 is 78236135.

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

It is a cyclic number.

It is not a de Polignac number, because 53163287 - 2² = 53163283 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 (53163283) 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, 336398 + ... + 336555.

It is an arithmetic number, because the mean of its divisors is an integer number (13459080).

Almost surely, 2^53163287 is an apocalyptic number.

53163287 is a deficient number, since it is larger than the sum of its proper divisors (673033).

53163287 is an equidigital number, since it uses as much as digits as its factorization.

53163287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673032.

The product of its digits is 30240, while the sum is 35.

The square root of 53163287 is about 7291.3158620375. The cubic root of 53163287 is about 376.0139363138.

The spelling of 53163287 in words is "fifty-three million, one hundred sixty-three thousand, two hundred eighty-seven".