53143479 has 16 divisors (see below), whose sum is σ = 83363040. Its totient is φ = 33344640.

The previous prime is 53143469. The next prime is 53143481. The reversal of 53143479 is 97434135.

It is not a de Polignac number, because 53143479 - 2⁴ = 53143463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53143439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57432 + ... + 58349.

It is an arithmetic number, because the mean of its divisors is an integer number (5210190).

Almost surely, 2^53143479 is an apocalyptic number.

53143479 is a deficient number, since it is larger than the sum of its proper divisors (30219561).

53143479 is a wasteful number, since it uses less digits than its factorization.

53143479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115807 (or 115801 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 53143479 is about 7289.9574072830. The cubic root of 53143479 is about 375.9672310925.

The spelling of 53143479 in words is "fifty-three million, one hundred forty-three thousand, four hundred seventy-nine".