30425222 has 4 divisors (see below), whose sum is σ = 45637836. Its totient is φ = 15212610.

The previous prime is 30425221. The next prime is 30425267. The reversal of 30425222 is 22252403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22252403 = 89 ⋅250027.

It is a junction number, because it is equal to n+sod(n) for n = 30425194 and 30425203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30425221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606304 + ... + 7606307.

It is an arithmetic number, because the mean of its divisors is an integer number (11409459).

Almost surely, 2^30425222 is an apocalyptic number.

30425222 is a deficient number, since it is larger than the sum of its proper divisors (15212614).

30425222 is a wasteful number, since it uses less digits than its factorization.

30425222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15212613.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 30425222 is about 5515.9062718650. The cubic root of 30425222 is about 312.1844392157.

Adding to 30425222 its reverse (22252403), we get a palindrome (52677625).

The spelling of 30425222 in words is "thirty million, four hundred twenty-five thousand, two hundred twenty-two".