225232065040 has 80 divisors (see below), whose sum is σ = 552572668800. Its totient is φ = 85207417856.

The previous prime is 225232065031. The next prime is 225232065049. The reversal of 225232065040 is 40560232522.

It is an interprime number because it is at equal distance from previous prime (225232065031) and next prime (225232065049).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 225232064993 and 225232065011.

It is not an unprimeable number, because it can be changed into a prime (225232065049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523930 + ... + 851449.

It is an arithmetic number, because the mean of its divisors is an integer number (6907158360).

Almost surely, 2^225232065040 is an apocalyptic number.

225232065040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225232065040 is an abundant number, since it is smaller than the sum of its proper divisors (327340603760).

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

225232065040 is a wasteful number, since it uses less digits than its factorization.

225232065040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375504 (or 1375498 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 225232065040 its reverse (40560232522), we get a palindrome (265792297562).

The spelling of 225232065040 in words is "two hundred twenty-five billion, two hundred thirty-two million, sixty-five thousand, forty".