22255651 has 16 divisors (see below), whose sum is σ = 25579008. Its totient is φ = 19326120.

The previous prime is 22255609. The next prime is 22255657. The reversal of 22255651 is 15655222.

It is not a de Polignac number, because 22255651 - 2¹⁹ = 21731363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22255657) 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 15 ways as a sum of consecutive naturals, for example, 30250 + ... + 30976.

It is an arithmetic number, because the mean of its divisors is an integer number (1598688).

Almost surely, 2^22255651 is an apocalyptic number.

22255651 is a deficient number, since it is larger than the sum of its proper divisors (3323357).

22255651 is an equidigital number, since it uses as much as digits as its factorization.

22255651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 761 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 22255651 is about 4717.5895328017. The cubic root of 22255651 is about 281.2851257528.

The spelling of 22255651 in words is "twenty-two million, two hundred fifty-five thousand, six hundred fifty-one".