53318223 has 48 divisors (see below), whose sum is σ = 92805120. Its totient is φ = 30164400.

The previous prime is 53318219. The next prime is 53318227. The reversal of 53318223 is 32281335.

It is an interprime number because it is at equal distance from previous prime (53318219) and next prime (53318227).

It is not a de Polignac number, because 53318223 - 2² = 53318219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53318227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252588 + ... + 252798.

It is an arithmetic number, because the mean of its divisors is an integer number (1933440).

Almost surely, 2^53318223 is an apocalyptic number.

53318223 is a deficient number, since it is larger than the sum of its proper divisors (39486897).

53318223 is a wasteful number, since it uses less digits than its factorization.

53318223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 412 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 53318223 is about 7301.9328263139. The cubic root of 53318223 is about 376.3788597745.

Adding to 53318223 its reverse (32281335), we get a palindrome (85599558).

The spelling of 53318223 in words is "fifty-three million, three hundred eighteen thousand, two hundred twenty-three".