225525101 has 8 divisors (see below), whose sum is σ = 231974040. Its totient is φ = 219094848.

The previous prime is 225525089. The next prime is 225525103. The reversal of 225525101 is 101525522.

It can be written as a sum of positive squares in 4 ways, for example, as 56265001 + 169260100 = 7501^2 + 13010^2 .

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 225525101 - 2⁶ = 225525037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225525103) 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 7 ways as a sum of consecutive naturals, for example, 21935 + ... + 30531.

It is an arithmetic number, because the mean of its divisors is an integer number (28996755).

Almost surely, 2^225525101 is an apocalyptic number.

It is an amenable number.

225525101 is a deficient number, since it is larger than the sum of its proper divisors (6448939).

225525101 is an equidigital number, since it uses as much as digits as its factorization.

225525101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9343.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 225525101 is about 15017.4931663044. The cubic root of 225525101 is about 608.6929831195.

The spelling of 225525101 in words is "two hundred twenty-five million, five hundred twenty-five thousand, one hundred one".