305553225 has 12 divisors (see below), whose sum is σ = 505181456. Its totient is φ = 162961680.

The previous prime is 305553217. The next prime is 305553233. The reversal of 305553225 is 522355503.

It is an interprime number because it is at equal distance from previous prime (305553217) and next prime (305553233).

It is not a de Polignac number, because 305553225 - 2³ = 305553217 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305553192 and 305553201.

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, 2036947 + ... + 2037096.

Almost surely, 2^305553225 is an apocalyptic number.

It is an amenable number.

305553225 is a deficient number, since it is larger than the sum of its proper divisors (199628231).

305553225 is a wasteful number, since it uses less digits than its factorization.

305553225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4074056 (or 4074051 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 305553225 is about 17480.0808064494. The cubic root of 305553225 is about 673.5382910082.

It can be divided in two parts, 3055 and 53225, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 305553225 in words is "three hundred five million, five hundred fifty-three thousand, two hundred twenty-five".