225302573 has 2 divisors, whose sum is σ = 225302574. Its totient is φ = 225302572.

The previous prime is 225302569. The next prime is 225302591. The reversal of 225302573 is 375203522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184878409 + 40424164 = 13597^2 + 6358^2 .

It is a cyclic number.

It is not a de Polignac number, because 225302573 - 2² = 225302569 is a prime.

It is a super-2 number, since 2×225302573² = 101522498800840658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225302593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112651286 + 112651287.

It is an arithmetic number, because the mean of its divisors is an integer number (112651287).

Almost surely, 2^225302573 is an apocalyptic number.

It is an amenable number.

225302573 is a deficient number, since it is larger than the sum of its proper divisors (1).

225302573 is an equidigital number, since it uses as much as digits as its factorization.

225302573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 225302573 is about 15010.0823781883. The cubic root of 225302573 is about 608.4927159706.

The spelling of 225302573 in words is "two hundred twenty-five million, three hundred two thousand, five hundred seventy-three".