225604814787 has 40 divisors (see below), whose sum is σ = 371025407280. Its totient is φ = 135475727040.

The previous prime is 225604814753. The next prime is 225604814833. The reversal of 225604814787 is 787418406522.

225604814787 is a `hidden beast` number, since 2 + 2 + 560 + 4 + 8 + 1 + 4 + 78 + 7 = 666.

It is not a de Polignac number, because 225604814787 - 2¹¹ = 225604812739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225604814887) 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 39 ways as a sum of consecutive naturals, for example, 1064368 + ... + 1258605.

It is an arithmetic number, because the mean of its divisors is an integer number (9275635182).

Almost surely, 2^225604814787 is an apocalyptic number.

225604814787 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

225604814787 is a deficient number, since it is larger than the sum of its proper divisors (145420592493).

225604814787 is a wasteful number, since it uses less digits than its factorization.

225604814787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323105 (or 2323096 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 225604814787 in words is "two hundred twenty-five billion, six hundred four million, eight hundred fourteen thousand, seven hundred eighty-seven".