53251443 has 12 divisors (see below), whose sum is σ = 87907248. Its totient is φ = 30429360.

The previous prime is 53251441. The next prime is 53251447. The reversal of 53251443 is 34415235.

It is not a de Polignac number, because 53251443 - 2¹ = 53251441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53251441) 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, 422568 + ... + 422693.

It is an arithmetic number, because the mean of its divisors is an integer number (7325604).

Almost surely, 2^53251443 is an apocalyptic number.

53251443 is a deficient number, since it is larger than the sum of its proper divisors (34655805).

53251443 is a wasteful number, since it uses less digits than its factorization.

53251443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845274 (or 845271 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 53251443 is about 7297.3586317242. The cubic root of 53251443 is about 376.2216584797.

Adding to 53251443 its reverse (34415235), we get a palindrome (87666678).

The spelling of 53251443 in words is "fifty-three million, two hundred fifty-one thousand, four hundred forty-three".