225774281915 has 32 divisors (see below), whose sum is σ = 333551917440. Its totient is φ = 142864533504.

The previous prime is 225774281911. The next prime is 225774281927. The reversal of 225774281915 is 519182477522.

It is not a de Polignac number, because 225774281915 - 2² = 225774281911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225774281911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1468787 + ... + 1615203.

It is an arithmetic number, because the mean of its divisors is an integer number (10423497420).

Almost surely, 2^225774281915 is an apocalyptic number.

225774281915 is a deficient number, since it is larger than the sum of its proper divisors (107777635525).

225774281915 is a wasteful number, since it uses less digits than its factorization.

225774281915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149831.

The product of its digits is 2822400, while the sum is 53.

The spelling of 225774281915 in words is "two hundred twenty-five billion, seven hundred seventy-four million, two hundred eighty-one thousand, nine hundred fifteen".