53545344 has 128 divisors (see below), whose sum is σ = 154224000. Its totient is φ = 16404480.

The previous prime is 53545343. The next prime is 53545351. The reversal of 53545344 is 44354535.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53545343) 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, 299047 + ... + 299225.

It is an arithmetic number, because the mean of its divisors is an integer number (1204875).

Almost surely, 2^53545344 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 53545344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77112000).

53545344 is an abundant number, since it is smaller than the sum of its proper divisors (100678656).

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

53545344 is a wasteful number, since it uses less digits than its factorization.

53545344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 244 counting only the distinct ones).

The product of its digits is 72000, while the sum is 33.

The square root of 53545344 is about 7317.4684146910. The cubic root of 53545344 is about 376.9125262887.

Adding to 53545344 its reverse (44354535), we get a palindrome (97899879).

The spelling of 53545344 in words is "fifty-three million, five hundred forty-five thousand, three hundred forty-four".