53043251 has 4 divisors (see below), whose sum is σ = 53310000. Its totient is φ = 52776504.

The previous prime is 53043239. The next prime is 53043253. The reversal of 53043251 is 15234035.

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 53043251 - 2¹⁴ = 53026867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53043253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133076 + ... + 133473.

It is an arithmetic number, because the mean of its divisors is an integer number (13327500).

Almost surely, 2^53043251 is an apocalyptic number.

53043251 is a deficient number, since it is larger than the sum of its proper divisors (266749).

53043251 is a wasteful number, since it uses less digits than its factorization.

53043251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266748.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53043251 is about 7283.0797743812. The cubic root of 53043251 is about 375.7307257002.

Adding to 53043251 its reverse (15234035), we get a palindrome (68277286).

The spelling of 53043251 in words is "fifty-three million, forty-three thousand, two hundred fifty-one".