53831393 has 16 divisors (see below), whose sum is σ = 67931136. Its totient is φ = 41436240.

The previous prime is 53831387. The next prime is 53831413. The reversal of 53831393 is 39313835.

It is a cyclic number.

It is not a de Polignac number, because 53831393 - 2⁴ = 53831377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53831303) 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, 2180 + ... + 10602.

It is an arithmetic number, because the mean of its divisors is an integer number (4245696).

Almost surely, 2^53831393 is an apocalyptic number.

It is an amenable number.

53831393 is a deficient number, since it is larger than the sum of its proper divisors (14099743).

53831393 is a wasteful number, since it uses less digits than its factorization.

53831393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524.

The product of its digits is 29160, while the sum is 35.

The square root of 53831393 is about 7336.9880059872. The cubic root of 53831393 is about 377.5825131387.

It can be divided in two parts, 5383 and 1393, that added together give a palindrome (6776).

The spelling of 53831393 in words is "fifty-three million, eight hundred thirty-one thousand, three hundred ninety-three".