22503013 has 8 divisors (see below), whose sum is σ = 24645600. Its totient is φ = 20419248.

The previous prime is 22503001. The next prime is 22503017. The reversal of 22503013 is 31030522.

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 22503013 - 2⁵ = 22502981 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 (22503017) 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, 13903 + ... + 15436.

It is an arithmetic number, because the mean of its divisors is an integer number (3080700).

Almost surely, 2^22503013 is an apocalyptic number.

It is an amenable number.

22503013 is a deficient number, since it is larger than the sum of its proper divisors (2142587).

22503013 is a wasteful number, since it uses less digits than its factorization.

22503013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29411.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 22503013 is about 4743.7340777071. The cubic root of 22503013 is about 282.3234096199.

Adding to 22503013 its reverse (31030522), we get a palindrome (53533535).

The spelling of 22503013 in words is "twenty-two million, five hundred three thousand, thirteen".