53453216 has 12 divisors (see below), whose sum is σ = 105236082. Its totient is φ = 26726592.

The previous prime is 53453209. The next prime is 53453227. The reversal of 53453216 is 61235435.

It can be written as a sum of positive squares in only one way, i.e., 53290000 + 163216 = 7300^2 + 404^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835175 + ... + 835238.

Almost surely, 2^53453216 is an apocalyptic number.

It is an amenable number.

53453216 is a deficient number, since it is larger than the sum of its proper divisors (51782866).

53453216 is a wasteful number, since it uses less digits than its factorization.

53453216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670423 (or 1670415 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 53453216 is about 7311.1706313011. The cubic root of 53453216 is about 376.6962352681.

The spelling of 53453216 in words is "fifty-three million, four hundred fifty-three thousand, two hundred sixteen".