9090070225 has 6 divisors (see below), whose sum is σ = 11271687110. Its totient is φ = 7272056160.

The previous prime is 9090070217. The next prime is 9090070237. The reversal of 9090070225 is 5220700909.

It can be written as a sum of positive squares in 3 ways, for example, as 698227776 + 8391842449 = 26424^2 + 91607^2 .

It is not a de Polignac number, because 9090070225 - 2³ = 9090070217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181801380 + ... + 181801429.

Almost surely, 2^9090070225 is an apocalyptic number.

It is an amenable number.

9090070225 is a deficient number, since it is larger than the sum of its proper divisors (2181616885).

9090070225 is a wasteful number, since it uses less digits than its factorization.

9090070225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363602819 (or 363602814 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 9090070225 is about 95341.8597731343. The cubic root of 9090070225 is about 2086.9998256638. Note that the first 3 decimals are identical.

The spelling of 9090070225 in words is "nine billion, ninety million, seventy thousand, two hundred twenty-five".