53143351 has 4 divisors (see below), whose sum is σ = 53450712. Its totient is φ = 52835992.

The previous prime is 53143333. The next prime is 53143367. The reversal of 53143351 is 15334135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15334135 = 5 ⋅3066827.

It is a cyclic number.

It is not a de Polignac number, because 53143351 - 2⁵ = 53143319 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 (53149351) 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, 153421 + ... + 153766.

It is an arithmetic number, because the mean of its divisors is an integer number (13362678).

Almost surely, 2^53143351 is an apocalyptic number.

53143351 is a deficient number, since it is larger than the sum of its proper divisors (307361).

53143351 is a wasteful number, since it uses less digits than its factorization.

53143351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307360.

The product of its digits is 2700, while the sum is 25.

The square root of 53143351 is about 7289.9486280769. The cubic root of 53143351 is about 375.9669292439.

Adding to 53143351 its reverse (15334135), we get a palindrome (68477486).

The spelling of 53143351 in words is "fifty-three million, one hundred forty-three thousand, three hundred fifty-one".