225670615 has 4 divisors (see below), whose sum is σ = 270804744. Its totient is φ = 180536488.

The previous prime is 225670573. The next prime is 225670637. The reversal of 225670615 is 516076522.

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 225670615 - 2²¹ = 223573463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22567057 + ... + 22567066.

It is an arithmetic number, because the mean of its divisors is an integer number (67701186).

Almost surely, 2^225670615 is an apocalyptic number.

225670615 is a deficient number, since it is larger than the sum of its proper divisors (45134129).

225670615 is an equidigital number, since it uses as much as digits as its factorization.

225670615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45134128.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 225670615 is about 15022.3372016474. The cubic root of 225670615 is about 608.8238692269.

The spelling of 225670615 in words is "two hundred twenty-five million, six hundred seventy thousand, six hundred fifteen".