30222554 has 4 divisors (see below), whose sum is σ = 45333834. Its totient is φ = 15111276.

The previous prime is 30222547. The next prime is 30222557. The reversal of 30222554 is 45522203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45522203 = 599 ⋅75997.

It can be written as a sum of positive squares in only one way, i.e., 27804529 + 2418025 = 5273^2 + 1555^2 .

It is not an unprimeable number, because it can be changed into a prime (30222557) 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, 7555637 + ... + 7555640.

Almost surely, 2^30222554 is an apocalyptic number.

30222554 is a deficient number, since it is larger than the sum of its proper divisors (15111280).

30222554 is a wasteful number, since it uses less digits than its factorization.

30222554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15111279.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 30222554 is about 5497.5043428814. The cubic root of 30222554 is about 311.4897217206.

Adding to 30222554 its reverse (45522203), we get a palindrome (75744757).

The spelling of 30222554 in words is "thirty million, two hundred twenty-two thousand, five hundred fifty-four".