53216235 has 24 divisors (see below), whose sum is σ = 92433744. Its totient is φ = 28322880.

The previous prime is 53216231. The next prime is 53216257. The reversal of 53216235 is 53261235.

53216235 is a `hidden beast` number, since 5 + 32 + 1 + 623 + 5 = 666.

53216235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53216235 - 2² = 53216231 is a prime.

It is a super-3 number, since 3×53216235³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53216199 and 53216208.

It is not an unprimeable number, because it can be changed into a prime (53216231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28480 + ... + 30290.

It is an arithmetic number, because the mean of its divisors is an integer number (3851406).

Almost surely, 2^53216235 is an apocalyptic number.

53216235 is a deficient number, since it is larger than the sum of its proper divisors (39217509).

53216235 is a wasteful number, since it uses less digits than its factorization.

53216235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475 (or 2472 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 53216235 is about 7294.9458531232. The cubic root of 53216235 is about 376.1387253124.

The spelling of 53216235 in words is "fifty-three million, two hundred sixteen thousand, two hundred thirty-five".