22255641 has 14 divisors (see below), whose sum is σ = 33369290. Its totient is φ = 14836608.

The previous prime is 22255609. The next prime is 22255657. The reversal of 22255641 is 14655222.

It can be written as a sum of positive squares in only one way, i.e., 11758041 + 10497600 = 3429^2 + 3240^2 .

It is not a de Polignac number, because 22255641 - 2⁵ = 22255609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22255691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 14536 + ... + 15993.

Almost surely, 2^22255641 is an apocalyptic number.

It is an amenable number.

22255641 is a deficient number, since it is larger than the sum of its proper divisors (11113649).

22255641 is an frugal number, since it uses more digits than its factorization.

22255641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30547 (or 30532 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 22255641 is about 4717.5884729383. The cubic root of 22255641 is about 281.2850836234.

The spelling of 22255641 in words is "twenty-two million, two hundred fifty-five thousand, six hundred forty-one".