53443208 has 48 divisors (see below), whose sum is σ = 124030080. Its totient is φ = 21138624.

The previous prime is 53443147. The next prime is 53443211. The reversal of 53443208 is 80234435.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6641 + ... + 12287.

It is an arithmetic number, because the mean of its divisors is an integer number (2583960).

Almost surely, 2^53443208 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 53443208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62015040).

53443208 is an abundant number, since it is smaller than the sum of its proper divisors (70586872).

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

53443208 is a wasteful number, since it uses less digits than its factorization.

53443208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686 (or 5669 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 53443208 is about 7310.4861671437. The cubic root of 53443208 is about 376.6727242959.

The spelling of 53443208 in words is "fifty-three million, four hundred forty-three thousand, two hundred eight".