53554816 has 32 divisors (see below), whose sum is σ = 121934880. Its totient is φ = 22951680.

The previous prime is 53554801. The next prime is 53554829. The reversal of 53554816 is 61845535.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28990 + ... + 30781.

It is an arithmetic number, because the mean of its divisors is an integer number (3810465).

Almost surely, 2^53554816 is an apocalyptic number.

53554816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

53554816 is an abundant number, since it is smaller than the sum of its proper divisors (68380064).

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

53554816 is an equidigital number, since it uses as much as digits as its factorization.

53554816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59792 (or 59780 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 53554816 is about 7318.1156044435. The cubic root of 53554816 is about 376.9347498515.

The spelling of 53554816 in words is "fifty-three million, five hundred fifty-four thousand, eight hundred sixteen".