225700985 has 16 divisors (see below), whose sum is σ = 274539456. Its totient is φ = 178110528.

The previous prime is 225700967. The next prime is 225700991. The reversal of 225700985 is 589007522.

It is a cyclic number.

It is not a de Polignac number, because 225700985 - 2¹⁸ = 225438841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147434 + ... + 148956.

It is an arithmetic number, because the mean of its divisors is an integer number (17158716).

Almost surely, 2^225700985 is an apocalyptic number.

It is an amenable number.

225700985 is a deficient number, since it is larger than the sum of its proper divisors (48838471).

225700985 is a wasteful number, since it uses less digits than its factorization.

225700985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 225700985 is about 15023.3479957032. The cubic root of 225700985 is about 608.8511791649.

The spelling of 225700985 in words is "two hundred twenty-five million, seven hundred thousand, nine hundred eighty-five".