53811329 has 16 divisors (see below), whose sum is σ = 65971584. Its totient is φ = 43190400.

The previous prime is 53811323. The next prime is 53811337. The reversal of 53811329 is 92311835.

It is not a de Polignac number, because 53811329 - 2⁴ = 53811313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53811295 and 53811304.

It is not an unprimeable number, because it can be changed into a prime (53811323) 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, 4892 + ... + 11469.

It is an arithmetic number, because the mean of its divisors is an integer number (4123224).

Almost surely, 2^53811329 is an apocalyptic number.

It is an amenable number.

53811329 is a deficient number, since it is larger than the sum of its proper divisors (12160255).

53811329 is a wasteful number, since it uses less digits than its factorization.

53811329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16408.

The product of its digits is 6480, while the sum is 32.

The square root of 53811329 is about 7335.6205599799. The cubic root of 53811329 is about 377.5355965439.

The spelling of 53811329 in words is "fifty-three million, eight hundred eleven thousand, three hundred twenty-nine".