53216203 has 4 divisors (see below), whose sum is σ = 53241760. Its totient is φ = 53190648.

The previous prime is 53216179. The next prime is 53216221. The reversal of 53216203 is 30261235.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53216203 - 2⁹ = 53215691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53216263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9348 + ... + 13921.

It is an arithmetic number, because the mean of its divisors is an integer number (13310440).

Almost surely, 2^53216203 is an apocalyptic number.

53216203 is a deficient number, since it is larger than the sum of its proper divisors (25557).

53216203 is a wasteful number, since it uses less digits than its factorization.

53216203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25556.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 53216203 is about 7294.9436598236. The cubic root of 53216203 is about 376.1386499191.

Adding to 53216203 its reverse (30261235), we get a palindrome (83477438).

The spelling of 53216203 in words is "fifty-three million, two hundred sixteen thousand, two hundred three".