30451225 has 12 divisors (see below), whose sum is σ = 43153984. Its totient is φ = 20880720.

The previous prime is 30451219. The next prime is 30451271. The reversal of 30451225 is 52215403.

It is not a de Polignac number, because 30451225 - 2³ = 30451217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30451196 and 30451205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86829 + ... + 87178.

Almost surely, 2^30451225 is an apocalyptic number.

30451225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30451225 is a deficient number, since it is larger than the sum of its proper divisors (12702759).

30451225 is a wasteful number, since it uses less digits than its factorization.

30451225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174024 (or 174019 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 30451225 is about 5518.2628607198. The cubic root of 30451225 is about 312.2733503222.

Adding to 30451225 its reverse (52215403), we get a palindrome (82666628).

It can be divided in two parts, 304 and 51225, that added together give a square (51529 = 227²).

The spelling of 30451225 in words is "thirty million, four hundred fifty-one thousand, two hundred twenty-five".