22551349 has 4 divisors (see below), whose sum is σ = 22823136. Its totient is φ = 22279564.

The previous prime is 22551343. The next prime is 22551359. The reversal of 22551349 is 94315522.

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 22551349 - 2⁵ = 22551317 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22551349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551343) 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, 135769 + ... + 135934.

It is an arithmetic number, because the mean of its divisors is an integer number (5705784).

Almost surely, 2^22551349 is an apocalyptic number.

It is an amenable number.

22551349 is a deficient number, since it is larger than the sum of its proper divisors (271787).

22551349 is an equidigital number, since it uses as much as digits as its factorization.

22551349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271786.

The product of its digits is 10800, while the sum is 31.

The square root of 22551349 is about 4748.8260654608. The cubic root of 22551349 is about 282.5254066481.

The spelling of 22551349 in words is "twenty-two million, five hundred fifty-one thousand, three hundred forty-nine".