225776215 has 8 divisors (see below), whose sum is σ = 309636000. Its totient is φ = 154817952.

The previous prime is 225776207. The next prime is 225776219. The reversal of 225776215 is 512677522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225776215 - 2³ = 225776207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225776219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3225340 + ... + 3225409.

It is an arithmetic number, because the mean of its divisors is an integer number (38704500).

Almost surely, 2^225776215 is an apocalyptic number.

225776215 is a deficient number, since it is larger than the sum of its proper divisors (83859785).

225776215 is an equidigital number, since it uses as much as digits as its factorization.

225776215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450761.

The product of its digits is 58800, while the sum is 37.

The square root of 225776215 is about 15025.8515565674. The cubic root of 225776215 is about 608.9188184888.

The spelling of 225776215 in words is "two hundred twenty-five million, seven hundred seventy-six thousand, two hundred fifteen".