225106715 has 4 divisors (see below), whose sum is σ = 270128064. Its totient is φ = 180085368.

The previous prime is 225106711. The next prime is 225106751. The reversal of 225106715 is 517601522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225106715 - 2² = 225106711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225106711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22510667 + ... + 22510676.

It is an arithmetic number, because the mean of its divisors is an integer number (67532016).

Almost surely, 2^225106715 is an apocalyptic number.

225106715 is a deficient number, since it is larger than the sum of its proper divisors (45021349).

225106715 is an equidigital number, since it uses as much as digits as its factorization.

225106715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45021348.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 225106715 is about 15003.5567449855. The cubic root of 225106715 is about 608.3163417201.

The spelling of 225106715 in words is "two hundred twenty-five million, one hundred six thousand, seven hundred fifteen".