53633240 has 64 divisors (see below), whose sum is σ = 127431360. Its totient is φ = 20275200.

The previous prime is 53633227. The next prime is 53633291. The reversal of 53633240 is 4233635.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88940 + ... + 89540.

It is an arithmetic number, because the mean of its divisors is an integer number (1991115).

Almost surely, 2^53633240 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 53633240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63715680).

53633240 is an abundant number, since it is smaller than the sum of its proper divisors (73798120).

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

53633240 is a wasteful number, since it uses less digits than its factorization.

53633240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 53633240 is about 7323.4718542506. The cubic root of 53633240 is about 377.1186506065.

Adding to 53633240 its reverse (4233635), we get a palindrome (57866875).

The spelling of 53633240 in words is "fifty-three million, six hundred thirty-three thousand, two hundred forty".