15223252223 has 4 divisors (see below), whose sum is σ = 15229893528. Its totient is φ = 15216610920.

The previous prime is 15223252211. The next prime is 15223252229. The reversal of 15223252223 is 32225232251.

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 15223252223 - 2⁴ = 15223252207 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 (15223252229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3317213 + ... + 3321798.

It is an arithmetic number, because the mean of its divisors is an integer number (3807473382).

Almost surely, 2^15223252223 is an apocalyptic number.

15223252223 is a deficient number, since it is larger than the sum of its proper divisors (6641305).

15223252223 is an equidigital number, since it uses as much as digits as its factorization.

15223252223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641304.

The product of its digits is 14400, while the sum is 29.

Adding to 15223252223 its reverse (32225232251), we get a palindrome (47448484474).

The spelling of 15223252223 in words is "fifteen billion, two hundred twenty-three million, two hundred fifty-two thousand, two hundred twenty-three".