22253747 has 8 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 21457800.

The previous prime is 22253741. The next prime is 22253783. The reversal of 22253747 is 74735222.

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 22253747 - 2¹⁰ = 22252723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22253741) 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, 122 + ... + 6672.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 2^22253747 is an apocalyptic number.

22253747 is a deficient number, since it is larger than the sum of its proper divisors (809293).

22253747 is an equidigital number, since it uses as much as digits as its factorization.

22253747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6673.

The product of its digits is 23520, while the sum is 32.

The square root of 22253747 is about 4717.3877305136. The cubic root of 22253747 is about 281.2771040875.

Adding to 22253747 its reverse (74735222), we get a palindrome (96988969).

The spelling of 22253747 in words is "twenty-two million, two hundred fifty-three thousand, seven hundred forty-seven".