538651223 has 12 divisors (see below), whose sum is σ = 593823720. Its totient is φ = 488233680.

The previous prime is 538651219. The next prime is 538651259. The reversal of 538651223 is 322156835.

It is not a de Polignac number, because 538651223 - 2² = 538651219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538651523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35573 + ... + 48401.

It is an arithmetic number, because the mean of its divisors is an integer number (49485310).

Almost surely, 2^538651223 is an apocalyptic number.

538651223 is a deficient number, since it is larger than the sum of its proper divisors (55172497).

538651223 is a wasteful number, since it uses less digits than its factorization.

538651223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13198 (or 13187 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 538651223 is about 23208.8608725202. The cubic root of 538651223 is about 813.6467300755.

The spelling of 538651223 in words is "five hundred thirty-eight million, six hundred fifty-one thousand, two hundred twenty-three".