53563340 has 12 divisors (see below), whose sum is σ = 112483056. Its totient is φ = 21425328.

The previous prime is 53563339. The next prime is 53563373. The reversal of 53563340 is 4336535.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339064 + ... + 1339103.

It is an arithmetic number, because the mean of its divisors is an integer number (9373588).

Almost surely, 2^53563340 is an apocalyptic number.

It is an amenable number.

53563340 is an abundant number, since it is smaller than the sum of its proper divisors (58919716).

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

53563340 is a wasteful number, since it uses less digits than its factorization.

53563340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678176 (or 2678174 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 53563340 is about 7318.6979716340. The cubic root of 53563340 is about 376.9547469411.

Adding to 53563340 its reverse (4336535), we get a palindrome (57899875).

The spelling of 53563340 in words is "fifty-three million, five hundred sixty-three thousand, three hundred forty".