53035440 has 80 divisors (see below), whose sum is σ = 165712608. Its totient is φ = 14030848.

The previous prime is 53035417. The next prime is 53035453. The reversal of 53035440 is 4453035.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 53035440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32074 + ... + 33686.

Almost surely, 2^53035440 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 53035440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82856304).

53035440 is an abundant number, since it is smaller than the sum of its proper divisors (112677168).

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

53035440 is a wasteful number, since it uses less digits than its factorization.

53035440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 53035440 is about 7282.5435117135. The cubic root of 53035440 is about 375.7122817781.

Adding to 53035440 its reverse (4453035), we get a palindrome (57488475).

The spelling of 53035440 in words is "fifty-three million, thirty-five thousand, four hundred forty".