899081225 has 24 divisors (see below), whose sum is σ = 1290274560. Its totient is φ = 608699520.

The previous prime is 899081221. The next prime is 899081231. The reversal of 899081225 is 522180998.

It is not a de Polignac number, because 899081225 - 2² = 899081221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (899081221) 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, 18692 + ... + 46341.

It is an arithmetic number, because the mean of its divisors is an integer number (53761440).

Almost surely, 2^899081225 is an apocalyptic number.

It is an amenable number.

899081225 is a deficient number, since it is larger than the sum of its proper divisors (391193335).

899081225 is a wasteful number, since it uses less digits than its factorization.

899081225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65129 (or 65124 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 899081225 is about 29984.6831732470. The cubic root of 899081225 is about 965.1607292211.

The spelling of 899081225 in words is "eight hundred ninety-nine million, eighty-one thousand, two hundred twenty-five".