53447793 has 16 divisors (see below), whose sum is σ = 82362240. Its totient is φ = 30197376.

The previous prime is 53447759. The next prime is 53447803. The reversal of 53447793 is 39774435.

It is not a de Polignac number, because 53447793 - 2⁶ = 53447729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53447743) 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, 12430 + ... + 16167.

It is an arithmetic number, because the mean of its divisors is an integer number (5147640).

Almost surely, 2^53447793 is an apocalyptic number.

It is an amenable number.

53447793 is a deficient number, since it is larger than the sum of its proper divisors (28914447).

53447793 is a wasteful number, since it uses less digits than its factorization.

53447793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28696.

The product of its digits is 317520, while the sum is 42.

The square root of 53447793 is about 7310.7997510532. The cubic root of 53447793 is about 376.6834958240.

The spelling of 53447793 in words is "fifty-three million, four hundred forty-seven thousand, seven hundred ninety-three".