225425293 has 2 divisors, whose sum is σ = 225425294. Its totient is φ = 225425292.

The previous prime is 225425281. The next prime is 225425297. The reversal of 225425293 is 392524522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138227049 + 87198244 = 11757^2 + 9338^2 .

It is a cyclic number.

It is not a de Polignac number, because 225425293 - 2²¹ = 223328141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225425297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112712646 + 112712647.

It is an arithmetic number, because the mean of its divisors is an integer number (112712647).

Almost surely, 2^225425293 is an apocalyptic number.

It is an amenable number.

225425293 is a deficient number, since it is larger than the sum of its proper divisors (1).

225425293 is an equidigital number, since it uses as much as digits as its factorization.

225425293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 34.

The square root of 225425293 is about 15014.1697406150. The cubic root of 225425293 is about 608.6031758308.

The spelling of 225425293 in words is "two hundred twenty-five million, four hundred twenty-five thousand, two hundred ninety-three".