225120506 has 48 divisors (see below), whose sum is σ = 384528384. Its totient is φ = 98684352.

The previous prime is 225120503. The next prime is 225120551. The reversal of 225120506 is 605021522.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225120503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 587591 + ... + 587973.

It is an arithmetic number, because the mean of its divisors is an integer number (8011008).

Almost surely, 2^225120506 is an apocalyptic number.

225120506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

225120506 is a deficient number, since it is larger than the sum of its proper divisors (159407878).

225120506 is a wasteful number, since it uses less digits than its factorization.

225120506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 225120506 is about 15004.0163289701. The cubic root of 225120506 is about 608.3287641533.

The spelling of 225120506 in words is "two hundred twenty-five million, one hundred twenty thousand, five hundred six".