225805101 has 32 divisors (see below), whose sum is σ = 337536000. Its totient is φ = 133436160.

The previous prime is 225805091. The next prime is 225805127. The reversal of 225805101 is 101508522.

It is not a de Polignac number, because 225805101 - 2⁶ = 225805037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225805141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192246 + ... + 193416.

It is an arithmetic number, because the mean of its divisors is an integer number (10548000).

Almost surely, 2^225805101 is an apocalyptic number.

It is an amenable number.

225805101 is a deficient number, since it is larger than the sum of its proper divisors (111730899).

225805101 is a wasteful number, since it uses less digits than its factorization.

225805101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 225805101 is about 15026.8127359064. The cubic root of 225805101 is about 608.9447859110.

The spelling of 225805101 in words is "two hundred twenty-five million, eight hundred five thousand, one hundred one".