22255028 has 6 divisors (see below), whose sum is σ = 38946306. Its totient is φ = 11127512.

The previous prime is 22255027. The next prime is 22255031. The reversal of 22255028 is 82055222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18421264 + 3833764 = 4292^2 + 1958^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22254988 and 22255006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22255027) by changing a digit.

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 as a sum of consecutive naturals, namely, 2781875 + ... + 2781882.

It is an arithmetic number, because the mean of its divisors is an integer number (6491051).

Almost surely, 2^22255028 is an apocalyptic number.

It is an amenable number.

22255028 is a deficient number, since it is larger than the sum of its proper divisors (16691278).

22255028 is a wasteful number, since it uses less digits than its factorization.

22255028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5563761 (or 5563759 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 22255028 is about 4717.5235028561. The cubic root of 22255028 is about 281.2825010671.

The spelling of 22255028 in words is "twenty-two million, two hundred fifty-five thousand, twenty-eight".