53107440 has 40 divisors (see below), whose sum is σ = 164633808. Its totient is φ = 14161920.

The previous prime is 53107421. The next prime is 53107441. The reversal of 53107440 is 4470135.

53107440 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 (40).

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 53107440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53107441) 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 7 ways as a sum of consecutive naturals, for example, 110401 + ... + 110880.

Almost surely, 2^53107440 is an apocalyptic number.

It is an amenable number.

53107440 is an abundant number, since it is smaller than the sum of its proper divisors (111526368).

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

53107440 is a wasteful number, since it uses less digits than its factorization.

53107440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221297 (or 221291 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 53107440 is about 7287.4851629352. The cubic root of 53107440 is about 375.8822250717.

Adding to 53107440 its reverse (4470135), we get a palindrome (57577575).

The spelling of 53107440 in words is "fifty-three million, one hundred seven thousand, four hundred forty".