53530223 has 4 divisors (see below), whose sum is σ = 55857648. Its totient is φ = 51202800.

The previous prime is 53530189. The next prime is 53530241. The reversal of 53530223 is 32203535.

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 53530223 - 2¹⁰ = 53529199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 2327401 = 53530223 / (5 + 3 + 5 + 3 + 0 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53530423) 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, 1163678 + ... + 1163723.

It is an arithmetic number, because the mean of its divisors is an integer number (13964412).

Almost surely, 2^53530223 is an apocalyptic number.

53530223 is a deficient number, since it is larger than the sum of its proper divisors (2327425).

53530223 is a wasteful number, since it uses less digits than its factorization.

53530223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327424.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 53530223 is about 7316.4351292142. The cubic root of 53530223 is about 376.8770433973.

Adding to 53530223 its reverse (32203535), we get a palindrome (85733758).

The spelling of 53530223 in words is "fifty-three million, five hundred thirty thousand, two hundred twenty-three".