225237761249 has 4 divisors (see below), whose sum is σ = 225322535364. Its totient is φ = 225152987136.

The previous prime is 225237761239. The next prime is 225237761263. The reversal of 225237761249 is 942167732522.

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 140882367649 + 84355393600 = 375343^2 + 290440^2 .

It is a cyclic number.

It is not a de Polignac number, because 225237761249 - 2³⁶ = 156518284513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225237761197 and 225237761206.

It is not an unprimeable number, because it can be changed into a prime (225237761239) 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, 42383072 + ... + 42388385.

It is an arithmetic number, because the mean of its divisors is an integer number (56330633841).

Almost surely, 2^225237761249 is an apocalyptic number.

It is an amenable number.

225237761249 is a deficient number, since it is larger than the sum of its proper divisors (84774115).

225237761249 is an equidigital number, since it uses as much as digits as its factorization.

225237761249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84774114.

The product of its digits is 2540160, while the sum is 50.

The spelling of 225237761249 in words is "two hundred twenty-five billion, two hundred thirty-seven million, seven hundred sixty-one thousand, two hundred forty-nine".