225053261 has 2 divisors, whose sum is σ = 225053262. Its totient is φ = 225053260.

The previous prime is 225053243. The next prime is 225053263. The reversal of 225053261 is 162350522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221831236 + 3222025 = 14894^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 225053261 - 2⁶ = 225053197 is a prime.

Together with 225053263, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225053261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225053263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112526630 + 112526631.

It is an arithmetic number, because the mean of its divisors is an integer number (112526631).

Almost surely, 2^225053261 is an apocalyptic number.

It is an amenable number.

225053261 is a deficient number, since it is larger than the sum of its proper divisors (1).

225053261 is an equidigital number, since it uses as much as digits as its factorization.

225053261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 225053261 is about 15001.7752616149. The cubic root of 225053261 is about 608.2681874985.

The spelling of 225053261 in words is "two hundred twenty-five million, fifty-three thousand, two hundred sixty-one".