53745216 has 56 divisors (see below), whose sum is σ = 162519360. Its totient is φ = 15355392.

The previous prime is 53745193. The next prime is 53745221. The reversal of 53745216 is 61254735.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18651 + ... + 21338.

Almost surely, 2^53745216 is an apocalyptic number.

53745216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

53745216 is an abundant number, since it is smaller than the sum of its proper divisors (108774144).

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

53745216 is a wasteful number, since it uses less digits than its factorization.

53745216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40011 (or 40001 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 53745216 is about 7331.1128759555. The cubic root of 53745216 is about 377.3809188310.

It can be divided in two parts, 537 and 45216, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 53745216 in words is "fifty-three million, seven hundred forty-five thousand, two hundred sixteen".