225907085 has 4 divisors (see below), whose sum is σ = 271088508. Its totient is φ = 180725664.

The previous prime is 225907069. The next prime is 225907103. The reversal of 225907085 is 580709522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46936201 + 178970884 = 6851^2 + 13378^2 .

It is a cyclic number.

It is not a de Polignac number, because 225907085 - 2⁴ = 225907069 is a prime.

It is a super-2 number, since 2×225907085² = 102068022106394450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22590704 + ... + 22590713.

It is an arithmetic number, because the mean of its divisors is an integer number (67772127).

Almost surely, 2^225907085 is an apocalyptic number.

It is an amenable number.

225907085 is a deficient number, since it is larger than the sum of its proper divisors (45181423).

225907085 is an equidigital number, since it uses as much as digits as its factorization.

225907085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45181422.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 225907085 is about 15030.2057537480. The cubic root of 225907085 is about 609.0364479648.

The spelling of 225907085 in words is "two hundred twenty-five million, nine hundred seven thousand, eighty-five".