53124440 has 16 divisors (see below), whose sum is σ = 119530080. Its totient is φ = 21249760.

The previous prime is 53124403. The next prime is 53124469. The reversal of 53124440 is 4442135.

53124440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53124440² = 5644412250627200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664016 + ... + 664095.

It is an arithmetic number, because the mean of its divisors is an integer number (7470630).

Almost surely, 2^53124440 is an apocalyptic number.

It is an amenable number.

53124440 is an abundant number, since it is smaller than the sum of its proper divisors (66405640).

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

53124440 is a wasteful number, since it uses less digits than its factorization.

53124440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328122 (or 1328118 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 53124440 is about 7288.6514527723. The cubic root of 53124440 is about 375.9223281541.

Adding to 53124440 its reverse (4442135), we get a palindrome (57566575).

The spelling of 53124440 in words is "fifty-three million, one hundred twenty-four thousand, four hundred forty".