650225409 has 4 divisors (see below), whose sum is σ = 866967216. Its totient is φ = 433483604.

The previous prime is 650225369. The next prime is 650225417. The reversal of 650225409 is 904522056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 650225409 - 2⁷ = 650225281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 650225409.

It is not an unprimeable number, because it can be changed into a prime (650225209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108370899 + ... + 108370904.

It is an arithmetic number, because the mean of its divisors is an integer number (216741804).

Almost surely, 2^650225409 is an apocalyptic number.

It is an amenable number.

650225409 is a deficient number, since it is larger than the sum of its proper divisors (216741807).

650225409 is a wasteful number, since it uses less digits than its factorization.

650225409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216741806.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 650225409 is about 25499.5178189706. The cubic root of 650225409 is about 866.3392261225.

The spelling of 650225409 in words is "six hundred fifty million, two hundred twenty-five thousand, four hundred nine".