53549424 has 70 divisors (see below), whose sum is σ = 155590736. Its totient is φ = 17845920.

The previous prime is 53549413. The next prime is 53549443. The reversal of 53549424 is 42494535.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 13 ways as a sum of consecutive naturals, for example, 9369 + ... + 13959.

Almost surely, 2^53549424 is an apocalyptic number.

53549424 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53549424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77795368).

53549424 is an abundant number, since it is smaller than the sum of its proper divisors (102041312).

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

53549424 is an equidigital number, since it uses as much as digits as its factorization.

53549424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617 (or 4596 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 53549424 is about 7317.7471943215. The cubic root of 53549424 is about 376.9220992595.

The spelling of 53549424 in words is "fifty-three million, five hundred forty-nine thousand, four hundred twenty-four".