53305868 has 48 divisors (see below), whose sum is σ = 122438400. Its totient is φ = 19673280.

The previous prime is 53305823. The next prime is 53305907. The reversal of 53305868 is 86850335.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 1298 + ... + 10406.

It is an arithmetic number, because the mean of its divisors is an integer number (2550800).

Almost surely, 2^53305868 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 53305868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61219200).

53305868 is an abundant number, since it is smaller than the sum of its proper divisors (69132532).

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

53305868 is a wasteful number, since it uses less digits than its factorization.

53305868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9150 (or 9148 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 53305868 is about 7301.0867684202. The cubic root of 53305868 is about 376.3497857871.

The spelling of 53305868 in words is "fifty-three million, three hundred five thousand, eight hundred sixty-eight".