53205223 has 16 divisors (see below), whose sum is σ = 58260384. Its totient is φ = 48384000.

The previous prime is 53205221. The next prime is 53205239. The reversal of 53205223 is 32250235.

It is a cyclic number.

It is not a de Polignac number, because 53205223 - 2¹ = 53205221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53205194 and 53205203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53205221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157711 + ... + 158047.

It is an arithmetic number, because the mean of its divisors is an integer number (3641274).

Almost surely, 2^53205223 is an apocalyptic number.

53205223 is a deficient number, since it is larger than the sum of its proper divisors (5055161).

53205223 is a wasteful number, since it uses less digits than its factorization.

53205223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 53205223 is about 7294.1910449343. The cubic root of 53205223 is about 376.1127788108.

Adding to 53205223 its reverse (32250235), we get a palindrome (85455458).

The spelling of 53205223 in words is "fifty-three million, two hundred five thousand, two hundred twenty-three".