225805394925 has 240 divisors, whose sum is σ = 469847499264. Its totient is φ = 106278480000.

The previous prime is 225805394831. The next prime is 225805394939. The reversal of 225805394925 is 529493508522.

It is a happy number.

225805394925 is a `hidden beast` number, since 2 + 2 + 5 + 80 + 539 + 4 + 9 + 25 = 666.

It is not a de Polignac number, because 225805394925 - 2¹¹ = 225805392877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 105961110 + ... + 105963240.

Almost surely, 2^225805394925 is an apocalyptic number.

225805394925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225805394925 is an abundant number, since it is smaller than the sum of its proper divisors (244042104339).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225805394925 is a wasteful number, since it uses less digits than its factorization.

225805394925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302 (or 2288 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 225805394925 in words is "two hundred twenty-five billion, eight hundred five million, three hundred ninety-four thousand, nine hundred twenty-five".