225005101 has 4 divisors (see below), whose sum is σ = 226647612. Its totient is φ = 223362592.

The previous prime is 225005069. The next prime is 225005117. The reversal of 225005101 is 101500522.

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 168740100 + 56265001 = 12990^2 + 7501^2 .

It is a cyclic number.

It is not a de Polignac number, because 225005101 - 2⁵ = 225005069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225005141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821050 + ... + 821323.

It is an arithmetic number, because the mean of its divisors is an integer number (56661903).

Almost surely, 2^225005101 is an apocalyptic number.

It is an amenable number.

225005101 is a deficient number, since it is larger than the sum of its proper divisors (1642511).

225005101 is a wasteful number, since it uses less digits than its factorization.

225005101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642510.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 225005101 is about 15000.1700323696. The cubic root of 225005101 is about 608.2247958652.

Adding to 225005101 its reverse (101500522), we get a palindrome (326505623).

The spelling of 225005101 in words is "two hundred twenty-five million, five thousand, one hundred one".