30555226 has 16 divisors (see below), whose sum is σ = 49740768. Its totient is φ = 13993200.

The previous prime is 30555223. The next prime is 30555251. The reversal of 30555226 is 62255503.

It is a super-2 number, since 2×30555226² = 1867243671822152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30555194 and 30555203.

It is not an unprimeable number, because it can be changed into a prime (30555221) 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 in 7 ways as a sum of consecutive naturals, for example, 1080 + ... + 7891.

It is an arithmetic number, because the mean of its divisors is an integer number (3108798).

Almost surely, 2^30555226 is an apocalyptic number.

30555226 is a deficient number, since it is larger than the sum of its proper divisors (19185542).

30555226 is a wasteful number, since it uses less digits than its factorization.

30555226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9117.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 30555226 is about 5527.6781744237. The cubic root of 30555226 is about 312.6284519397.

It can be divided in two parts, 3055 and 5226, that added together give a square (8281 = 91²).

The spelling of 30555226 in words is "thirty million, five hundred fifty-five thousand, two hundred twenty-six".