53499744 has 96 divisors (see below), whose sum is σ = 164304000. Its totient is φ = 16889472.

The previous prime is 53499739. The next prime is 53499841. The reversal of 53499744 is 44799435.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 53499744.

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 15 ways as a sum of consecutive naturals, for example, 14787 + ... + 18045.

It is an arithmetic number, because the mean of its divisors is an integer number (1711500).

Almost surely, 2^53499744 is an apocalyptic number.

53499744 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 53499744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82152000).

53499744 is an abundant number, since it is smaller than the sum of its proper divisors (110804256).

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

53499744 is a wasteful number, since it uses less digits than its factorization.

53499744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297 (or 3283 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 53499744 is about 7314.3519193432. The cubic root of 53499744 is about 376.8055011571.

The spelling of 53499744 in words is "fifty-three million, four hundred ninety-nine thousand, seven hundred forty-four".