53443392 has 56 divisors (see below), whose sum is σ = 145243296. Its totient is φ = 17330688.

The previous prime is 53443391. The next prime is 53443457. The reversal of 53443392 is 29334435.

It is a super-2 number, since 2×53443392² = 5712392296931328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53443391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3343 + ... + 10865.

Almost surely, 2^53443392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53443392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72621648).

53443392 is an abundant number, since it is smaller than the sum of its proper divisors (91799904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53443392 is a wasteful number, since it uses less digits than its factorization.

53443392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575 (or 7565 counting only the distinct ones).

The product of its digits is 38880, while the sum is 33.

The square root of 53443392 is about 7310.4987517953. The cubic root of 53443392 is about 376.6731565784.

It can be divided in two parts, 53443 and 392, that added together give a palindrome (53835).

The spelling of 53443392 in words is "fifty-three million, four hundred forty-three thousand, three hundred ninety-two".