53124240 has 80 divisors (see below), whose sum is σ = 177363648. Its totient is φ = 13075968.

The previous prime is 53124191. The next prime is 53124251. The reversal of 53124240 is 4242135.

It is a tau number, because it is divible by the number of its divisors (80).

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, 5394 + ... + 11633.

Almost surely, 2^53124240 is an apocalyptic number.

It is an amenable number.

53124240 is an abundant number, since it is smaller than the sum of its proper divisors (124239408).

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

53124240 is a wasteful number, since it uses less digits than its factorization.

53124240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17056 (or 17050 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 53124240 is about 7288.6377328003. The cubic root of 53124240 is about 375.9218564029.

Adding to 53124240 its reverse (4242135), we get a palindrome (57366375).

The spelling of 53124240 in words is "fifty-three million, one hundred twenty-four thousand, two hundred forty".