53307776 has 32 divisors (see below), whose sum is σ = 108470880. Its totient is φ = 26083840.

The previous prime is 53307769. The next prime is 53307781. The reversal of 53307776 is 67770335.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1586 + ... + 10446.

It is an arithmetic number, because the mean of its divisors is an integer number (3389715).

Almost surely, 2^53307776 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 53307776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54235440).

53307776 is an abundant number, since it is smaller than the sum of its proper divisors (55163104).

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

53307776 is an equidigital number, since it uses as much as digits as its factorization.

53307776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8922 (or 8910 counting only the distinct ones).

The product of its (nonzero) digits is 92610, while the sum is 38.

The square root of 53307776 is about 7301.2174327300. The cubic root of 53307776 is about 376.3542760171.

The spelling of 53307776 in words is "fifty-three million, three hundred seven thousand, seven hundred seventy-six".