22256432013 has 8 divisors (see below), whose sum is σ = 29969057376. Its totient is φ = 14690714000.

The previous prime is 22256431997. The next prime is 22256432047. The reversal of 22256432013 is 31023465222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22256432013 - 2⁴ = 22256431997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22256432083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36726483 + ... + 36727088.

It is an arithmetic number, because the mean of its divisors is an integer number (3746132172).

Almost surely, 2^22256432013 is an apocalyptic number.

It is an amenable number.

22256432013 is a deficient number, since it is larger than the sum of its proper divisors (7712625363).

22256432013 is a wasteful number, since it uses less digits than its factorization.

22256432013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73453675.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 22256432013 its reverse (31023465222), we get a palindrome (53279897235).

The spelling of 22256432013 in words is "twenty-two billion, two hundred fifty-six million, four hundred thirty-two thousand, thirteen".