53751223 has 4 divisors (see below), whose sum is σ = 53769640. Its totient is φ = 53732808.

The previous prime is 53751167. The next prime is 53751227. The reversal of 53751223 is 32215735.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53751223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53751191 and 53751200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53751227) 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, 3753 + ... + 11026.

It is an arithmetic number, because the mean of its divisors is an integer number (13442410).

Almost surely, 2^53751223 is an apocalyptic number.

53751223 is a deficient number, since it is larger than the sum of its proper divisors (18417).

53751223 is a wasteful number, since it uses less digits than its factorization.

53751223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18416.

The product of its digits is 6300, while the sum is 28.

The square root of 53751223 is about 7331.5225567409. The cubic root of 53751223 is about 377.3949780217.

Adding to 53751223 its reverse (32215735), we get a palindrome (85966958).

The spelling of 53751223 in words is "fifty-three million, seven hundred fifty-one thousand, two hundred twenty-three".