53843820 has 48 divisors (see below), whose sum is σ = 152164320. Its totient is φ = 14224896.

The previous prime is 53843819. The next prime is 53843831. The reversal of 53843820 is 2834835.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2424 + ... + 10656.

It is an arithmetic number, because the mean of its divisors is an integer number (3170090).

Almost surely, 2^53843820 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 53843820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76082160).

53843820 is an abundant number, since it is smaller than the sum of its proper divisors (98320500).

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

53843820 is a wasteful number, since it uses less digits than its factorization.

53843820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8354 (or 8352 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 53843820 is about 7337.8348305205. The cubic root of 53843820 is about 377.6115659312.

The spelling of 53843820 in words is "fifty-three million, eight hundred forty-three thousand, eight hundred twenty".