30222533 has 12 divisors (see below), whose sum is σ = 33562284. Its totient is φ = 27192000.

The previous prime is 30222473. The next prime is 30222547. The reversal of 30222533 is 33522203.

It can be written as a sum of positive squares in 2 ways, for example, as 26388769 + 3833764 = 5137^2 + 1958^2 .

It is not a de Polignac number, because 30222533 - 2¹⁴ = 30206149 is a prime.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10985 + ... + 13457.

It is an arithmetic number, because the mean of its divisors is an integer number (2796857).

Almost surely, 2^30222533 is an apocalyptic number.

It is an amenable number.

30222533 is a deficient number, since it is larger than the sum of its proper divisors (3339751).

30222533 is a wasteful number, since it uses less digits than its factorization.

30222533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596 (or 2585 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 30222533 is about 5497.5024329235. The cubic root of 30222533 is about 311.4896495749.

Adding to 30222533 its reverse (33522203), we get a palindrome (63744736).

It can be divided in two parts, 3022 and 2533, that added together give a palindrome (5555).

The spelling of 30222533 in words is "thirty million, two hundred twenty-two thousand, five hundred thirty-three".