53363640 has 64 divisors (see below), whose sum is σ = 174648960. Its totient is φ = 12936320.

The previous prime is 53363587. The next prime is 53363669. The reversal of 53363640 is 4636335.

53363640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 53363598 and 53363607.

It is a congruent number.

It is an unprimeable number.

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, 18894 + ... + 21533.

It is an arithmetic number, because the mean of its divisors is an integer number (2728890).

Almost surely, 2^53363640 is an apocalyptic number.

It is an amenable number.

53363640 is an abundant number, since it is smaller than the sum of its proper divisors (121285320).

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

53363640 is a wasteful number, since it uses less digits than its factorization.

53363640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40452 (or 40448 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 30.

The square root of 53363640 is about 7305.0420943346. The cubic root of 53363640 is about 376.4856972145.

Adding to 53363640 its reverse (4636335), we get a palindrome (57999975).

The spelling of 53363640 in words is "fifty-three million, three hundred sixty-three thousand, six hundred forty".