22251055 has 8 divisors (see below), whose sum is σ = 27023472. Its totient is φ = 17586048.

The previous prime is 22251049. The next prime is 22251067. The reversal of 22251055 is 55015222.

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 22251055 - 2²³ = 13862447 is a prime.

It is a super-2 number, since 2×22251055² = 990218897226050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26394 + ... + 27223.

It is an arithmetic number, because the mean of its divisors is an integer number (3377934).

Almost surely, 2^22251055 is an apocalyptic number.

22251055 is a deficient number, since it is larger than the sum of its proper divisors (4772417).

22251055 is an equidigital number, since it uses as much as digits as its factorization.

22251055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53705.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 22251055 is about 4717.1023944791. The cubic root of 22251055 is about 281.2657617504.

Adding to 22251055 its reverse (55015222), we get a palindrome (77266277).

The spelling of 22251055 in words is "twenty-two million, two hundred fifty-one thousand, fifty-five".