53633040 has 80 divisors (see below), whose sum is σ = 170161728. Its totient is φ = 13966848.

The previous prime is 53633009. The next prime is 53633051. The reversal of 53633040 is 4033635.

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 53633040.

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, 7722 + ... + 12918.

Almost surely, 2^53633040 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 53633040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85080864).

53633040 is an abundant number, since it is smaller than the sum of its proper divisors (116528688).

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

53633040 is a wasteful number, since it uses less digits than its factorization.

53633040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256 (or 5250 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 53633040 is about 7323.4581995120. The cubic root of 53633040 is about 377.1181818436.

Adding to 53633040 its reverse (4033635), we get a palindrome (57666675).

The spelling of 53633040 in words is "fifty-three million, six hundred thirty-three thousand, forty".