305867225 has 24 divisors (see below), whose sum is σ = 416610240. Its totient is φ = 221728320.

The previous prime is 305867183. The next prime is 305867227. The reversal of 305867225 is 522768503.

It is not a de Polignac number, because 305867225 - 2¹⁰ = 305866201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (305867227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3074 + ... + 24923.

It is an arithmetic number, because the mean of its divisors is an integer number (17358760).

Almost surely, 2^305867225 is an apocalyptic number.

It is an amenable number.

305867225 is a deficient number, since it is larger than the sum of its proper divisors (110743015).

305867225 is a wasteful number, since it uses less digits than its factorization.

305867225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28049 (or 28044 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 305867225 is about 17489.0601519922. The cubic root of 305867225 is about 673.7689312607.

The spelling of 305867225 in words is "three hundred five million, eight hundred sixty-seven thousand, two hundred twenty-five".