53115424 has 48 divisors (see below), whose sum is σ = 108620568. Its totient is φ = 25546752.

The previous prime is 53115409. The next prime is 53115427. The reversal of 53115424 is 42451135.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44890000 + 8225424 = 6700^2 + 2868^2 .

It is not an unprimeable number, because it can be changed into a prime (53115427) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 133594 + ... + 133990.

Almost surely, 2^53115424 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 53115424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54310284).

53115424 is an abundant number, since it is smaller than the sum of its proper divisors (55505144).

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

53115424 is a wasteful number, since it uses less digits than its factorization.

53115424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 549 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 53115424 is about 7288.0329307708. The cubic root of 53115424 is about 375.9010604321.

Adding to 53115424 its reverse (42451135), we get a palindrome (95566559).

The spelling of 53115424 in words is "fifty-three million, one hundred fifteen thousand, four hundred twenty-four".