225528306337 has 4 divisors (see below), whose sum is σ = 238794677316. Its totient is φ = 212261935360.

The previous prime is 225528306323. The next prime is 225528306433. The reversal of 225528306337 is 733603825522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 131206226176 + 94322080161 = 362224^2 + 307119^2 .

It is a cyclic number.

It is not a de Polignac number, because 225528306337 - 2¹⁹ = 225527782049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225528306737) 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, 6633185464 + ... + 6633185497.

It is an arithmetic number, because the mean of its divisors is an integer number (59698669329).

Almost surely, 2^225528306337 is an apocalyptic number.

It is an amenable number.

225528306337 is a deficient number, since it is larger than the sum of its proper divisors (13266370979).

225528306337 is a wasteful number, since it uses less digits than its factorization.

225528306337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13266370978.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 225528306337 in words is "two hundred twenty-five billion, five hundred twenty-eight million, three hundred six thousand, three hundred thirty-seven".