30356225 has 12 divisors (see below), whose sum is σ = 37738284. Its totient is φ = 24222720.

The previous prime is 30356213. The next prime is 30356231. The reversal of 30356225 is 52265303.

It can be written as a sum of positive squares in 6 ways, for example, as 588289 + 29767936 = 767^2 + 5456^2 .

It is not a de Polignac number, because 30356225 - 2¹⁰ = 30355201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30356194 and 30356203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10097 + ... + 12753.

It is an arithmetic number, because the mean of its divisors is an integer number (3144857).

Almost surely, 2^30356225 is an apocalyptic number.

It is an amenable number.

30356225 is a deficient number, since it is larger than the sum of its proper divisors (7382059).

30356225 is a wasteful number, since it uses less digits than its factorization.

30356225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124 (or 3119 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 30356225 is about 5509.6483553853. The cubic root of 30356225 is about 311.9482744899.

The spelling of 30356225 in words is "thirty million, three hundred fifty-six thousand, two hundred twenty-five".