53243624 has 64 divisors (see below), whose sum is σ = 121228800. Its totient is φ = 21415104.

The previous prime is 53243581. The next prime is 53243633. The reversal of 53243624 is 42634235.

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, 173279 + ... + 173585.

It is an arithmetic number, because the mean of its divisors is an integer number (1894200).

Almost surely, 2^53243624 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 53243624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60614400).

53243624 is an abundant number, since it is smaller than the sum of its proper divisors (67985176).

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

53243624 is a wasteful number, since it uses less digits than its factorization.

53243624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 498 counting only the distinct ones).

The product of its digits is 17280, while the sum is 29.

The square root of 53243624 is about 7296.8228702635. The cubic root of 53243624 is about 376.2032438229.

Adding to 53243624 its reverse (42634235), we get a palindrome (95877859).

The spelling of 53243624 in words is "fifty-three million, two hundred forty-three thousand, six hundred twenty-four".