53163823 has 4 divisors (see below), whose sum is σ = 54166968. Its totient is φ = 52160680.

The previous prime is 53163821. The next prime is 53163829. The reversal of 53163823 is 32836135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32836135 = 5 ⋅6567227.

It is a cyclic number.

It is not a de Polignac number, because 53163823 - 2¹ = 53163821 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 (53163821) 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, 501493 + ... + 501598.

It is an arithmetic number, because the mean of its divisors is an integer number (13541742).

Almost surely, 2^53163823 is an apocalyptic number.

53163823 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

53163823 is a deficient number, since it is larger than the sum of its proper divisors (1003145).

53163823 is a wasteful number, since it uses less digits than its factorization.

53163823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003144.

The product of its digits is 12960, while the sum is 31.

The square root of 53163823 is about 7291.3526179989. The cubic root of 53163823 is about 376.0151999853.

Adding to 53163823 its reverse (32836135), we get a palindrome (85999958).

The spelling of 53163823 in words is "fifty-three million, one hundred sixty-three thousand, eight hundred twenty-three".