225242646445025 has 96 divisors (see below), whose sum is σ = 314599145616000. Its totient is φ = 158552328960000.

The previous prime is 225242646445013. The next prime is 225242646445039. The reversal of 225242646445025 is 520544646242522.

It is not a de Polignac number, because 225242646445025 - 2⁴ = 225242646445009 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1392618410 + ... + 1392780140.

It is an arithmetic number, because the mean of its divisors is an integer number (3277074433500).

Almost surely, 2^{225242646445025} is an apocalyptic number.

225242646445025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225242646445025 is a deficient number, since it is larger than the sum of its proper divisors (89356499170975).

225242646445025 is a wasteful number, since it uses less digits than its factorization.

225242646445025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162771 (or 162766 counting only the distinct ones).

The product of its (nonzero) digits is 36864000, while the sum is 53.

The spelling of 225242646445025 in words is "two hundred twenty-five trillion, two hundred forty-two billion, six hundred forty-six million, four hundred forty-five thousand, twenty-five".