30772225 has 24 divisors (see below), whose sum is σ = 41961600. Its totient is φ = 22200000.

The previous prime is 30772213. The next prime is 30772241. The reversal of 30772225 is 52227703.

It is not a de Polignac number, because 30772225 - 2⁷ = 30772097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30772193 and 30772202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40600 + ... + 41350.

It is an arithmetic number, because the mean of its divisors is an integer number (1748400).

Almost surely, 2^30772225 is an apocalyptic number.

It is an amenable number.

30772225 is a deficient number, since it is larger than the sum of its proper divisors (11189375).

30772225 is a wasteful number, since it uses less digits than its factorization.

30772225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 30772225 is about 5547.2718520008. The cubic root of 30772225 is about 313.3667882140.

Adding to 30772225 its reverse (52227703), we get a palindrome (82999928).

The spelling of 30772225 in words is "thirty million, seven hundred seventy-two thousand, two hundred twenty-five".