225650389328897 has 24 divisors (see below), whose sum is σ = 252772417590840. Its totient is φ = 201107404592640.

The previous prime is 225650389328779. The next prime is 225650389328899. The reversal of 225650389328897 is 798823983056522.

It is a Cunningham number, because it is equal to 15021664²+1.

It can be written as a sum of positive squares in 12 ways, for example, as 107324813733361 + 118325575595536 = 10359769^2 + 10877756^2 .

It is not a de Polignac number, because 225650389328897 - 2²⁶ = 225650322220033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225650389328899) 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, 412297613 + ... + 412844549.

It is an arithmetic number, because the mean of its divisors is an integer number (10532184066285).

Almost surely, 2^{225650389328897} is an apocalyptic number.

It is an amenable number.

225650389328897 is a deficient number, since it is larger than the sum of its proper divisors (27122028261943).

225650389328897 is a wasteful number, since it uses less digits than its factorization.

225650389328897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631173 (or 631160 counting only the distinct ones).

The product of its (nonzero) digits is 3135283200, while the sum is 77.

The spelling of 225650389328897 in words is "two hundred twenty-five trillion, six hundred fifty billion, three hundred eighty-nine million, three hundred twenty-eight thousand, eight hundred ninety-seven".