53543744 has 56 divisors (see below), whose sum is σ = 116448840. Its totient is φ = 24313856.

The previous prime is 53543741. The next prime is 53543753. The reversal of 53543744 is 44734535.

It can be written as a sum of positive squares in 4 ways, for example, as 30118144 + 23425600 = 5488^2 + 4840^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53543741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30704 + ... + 32400.

Almost surely, 2^53543744 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 53543744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58224420).

53543744 is an abundant number, since it is smaller than the sum of its proper divisors (62905096).

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

53543744 is a wasteful number, since it uses less digits than its factorization.

53543744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1745 counting only the distinct ones).

The product of its digits is 100800, while the sum is 35.

The square root of 53543744 is about 7317.3590864464. The cubic root of 53543744 is about 376.9087720497.

The spelling of 53543744 in words is "fifty-three million, five hundred forty-three thousand, seven hundred forty-four".