225775376437 has 12 divisors (see below), whose sum is σ = 251086200420. Its totient is φ = 202775384448.

The previous prime is 225775376417. The next prime is 225775376441. The reversal of 225775376437 is 734673577522.

It can be written as a sum of positive squares in 6 ways, for example, as 225420196 + 225549956241 = 15014^2 + 474921^2 .

It is a de Polignac number, because none of the positive numbers 2^k-225775376437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225775376417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18047112 + ... + 18059617.

It is an arithmetic number, because the mean of its divisors is an integer number (20923850035).

Almost surely, 2^225775376437 is an apocalyptic number.

It is an amenable number.

225775376437 is a deficient number, since it is larger than the sum of its proper divisors (25310823983).

225775376437 is a wasteful number, since it uses less digits than its factorization.

225775376437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36106792 (or 36106779 counting only the distinct ones).

The product of its digits is 51861600, while the sum is 58.

The spelling of 225775376437 in words is "two hundred twenty-five billion, seven hundred seventy-five million, three hundred seventy-six thousand, four hundred thirty-seven".