53559744 has 84 divisors (see below), whose sum is σ = 164875464. Its totient is φ = 15300096.

The previous prime is 53559719. The next prime is 53559749. The reversal of 53559744 is 44795535.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 53559696 and 53559705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53559749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6562 + ... + 12254.

Almost surely, 2^53559744 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 53559744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82437732).

53559744 is an abundant number, since it is smaller than the sum of its proper divisors (111315720).

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

53559744 is a wasteful number, since it uses less digits than its factorization.

53559744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722 (or 5705 counting only the distinct ones).

The product of its digits is 378000, while the sum is 42.

The square root of 53559744 is about 7318.4522953969. The cubic root of 53559744 is about 376.9463110743.

The spelling of 53559744 in words is "fifty-three million, five hundred fifty-nine thousand, seven hundred forty-four".