53169424 has 80 divisors (see below), whose sum is σ = 129991680. Its totient is φ = 20465280.

The previous prime is 53169397. The next prime is 53169427. The reversal of 53169424 is 42496135.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 53169424.

It is not an unprimeable number, because it can be changed into a prime (53169427) 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 15 ways as a sum of consecutive naturals, for example, 126687 + ... + 127105.

It is an arithmetic number, because the mean of its divisors is an integer number (1624896).

Almost surely, 2^53169424 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 53169424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64995840).

53169424 is an abundant number, since it is smaller than the sum of its proper divisors (76822256).

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

53169424 is a wasteful number, since it uses less digits than its factorization.

53169424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 542 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 53169424 is about 7291.7366929971. The cubic root of 53169424 is about 376.0284043730.

Subtracting from 53169424 its reverse (42496135), we obtain a square (10673289 = 3267²).

The spelling of 53169424 in words is "fifty-three million, one hundred sixty-nine thousand, four hundred twenty-four".