22251713 has 4 divisors (see below), whose sum is σ = 24274608. Its totient is φ = 20228820.

The previous prime is 22251709. The next prime is 22251731. The reversal of 22251713 is 31715222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22251713 - 2² = 22251709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22251743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011431 + ... + 1011452.

It is an arithmetic number, because the mean of its divisors is an integer number (6068652).

Almost surely, 2^22251713 is an apocalyptic number.

It is an amenable number.

22251713 is a deficient number, since it is larger than the sum of its proper divisors (2022895).

22251713 is a wasteful number, since it uses less digits than its factorization.

22251713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022894.

The product of its digits is 840, while the sum is 23.

The square root of 22251713 is about 4717.1721401704. The cubic root of 22251713 is about 281.2685342189.

Adding to 22251713 its reverse (31715222), we get a palindrome (53966935).

The spelling of 22251713 in words is "twenty-two million, two hundred fifty-one thousand, seven hundred thirteen".