53453040 has 80 divisors (see below), whose sum is σ = 166501248. Its totient is φ = 14185728.

The previous prime is 53453017. The next prime is 53453041. The reversal of 53453040 is 4035435.

It is a happy number.

53453040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53453040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53453041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67527 + ... + 68313.

Almost surely, 2^53453040 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 53453040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83250624).

53453040 is an abundant number, since it is smaller than the sum of its proper divisors (113048208).

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

53453040 is a wasteful number, since it uses less digits than its factorization.

53453040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1080 counting only the distinct ones).

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

The square root of 53453040 is about 7311.1585949150. The cubic root of 53453040 is about 376.6958218311.

Adding to 53453040 its reverse (4035435), we get a palindrome (57488475).

It can be divided in two parts, 5345 and 3040, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 53453040 in words is "fifty-three million, four hundred fifty-three thousand, forty".