22225613 has 8 divisors (see below), whose sum is σ = 24556608. Its totient is φ = 20008384.

The previous prime is 22225607. The next prime is 22225639. The reversal of 22225613 is 31652222.

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 22225613 - 2⁴ = 22225597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22225663) 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, 28031 + ... + 28812.

It is an arithmetic number, because the mean of its divisors is an integer number (3069576).

Almost surely, 2^22225613 is an apocalyptic number.

22225613 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22225613 is a deficient number, since it is larger than the sum of its proper divisors (2330995).

22225613 is a wasteful number, since it uses less digits than its factorization.

22225613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56883.

The product of its digits is 1440, while the sum is 23.

The square root of 22225613 is about 4714.4048404862. The cubic root of 22225613 is about 281.1585205037.

Adding to 22225613 its reverse (31652222), we get a palindrome (53877835).

The spelling of 22225613 in words is "twenty-two million, two hundred twenty-five thousand, six hundred thirteen".