53016243 has 16 divisors (see below), whose sum is σ = 81156096. Its totient is φ = 30156480.

The previous prime is 53016233. The next prime is 53016247. The reversal of 53016243 is 34261035.

It is a happy number.

It is not a de Polignac number, because 53016243 - 2⁹ = 53015731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53016247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 978 + ... + 10343.

It is an arithmetic number, because the mean of its divisors is an integer number (5072256).

Almost surely, 2^53016243 is an apocalyptic number.

53016243 is a deficient number, since it is larger than the sum of its proper divisors (28139853).

53016243 is a wasteful number, since it uses less digits than its factorization.

53016243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11554.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 53016243 is about 7281.2253776408. The cubic root of 53016243 is about 375.6669446785. Note that the first 3 decimals are identical.

Adding to 53016243 its reverse (34261035), we get a palindrome (87277278).

The spelling of 53016243 in words is "fifty-three million, sixteen thousand, two hundred forty-three".