905320225 has 6 divisors (see below), whose sum is σ = 1122597110. Its totient is φ = 724256160.

The previous prime is 905320223. The next prime is 905320277. The reversal of 905320225 is 522023509.

It can be written as a sum of positive squares in 3 ways, for example, as 9096256 + 896223969 = 3016^2 + 29937^2 .

It is not a de Polignac number, because 905320225 - 2¹ = 905320223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 905320193 and 905320202.

It is not an unprimeable number, because it can be changed into a prime (905320223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18106380 + ... + 18106429.

Almost surely, 2^905320225 is an apocalyptic number.

It is an amenable number.

905320225 is a deficient number, since it is larger than the sum of its proper divisors (217276885).

905320225 is a wasteful number, since it uses less digits than its factorization.

905320225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36212819 (or 36212814 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 905320225 is about 30088.5397618429. The cubic root of 905320225 is about 967.3881003083.

The spelling of 905320225 in words is "nine hundred five million, three hundred twenty thousand, two hundred twenty-five".