225450629 has 2 divisors, whose sum is σ = 225450630. Its totient is φ = 225450628.

The previous prime is 225450619. The next prime is 225450653. The reversal of 225450629 is 926054522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225060004 + 390625 = 15002^2 + 625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225450629 is a prime.

It is a super-2 number, since 2×225450629² = 101655972232991282, 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 (225450619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112725314 + 112725315.

It is an arithmetic number, because the mean of its divisors is an integer number (112725315).

Almost surely, 2^225450629 is an apocalyptic number.

It is an amenable number.

225450629 is a deficient number, since it is larger than the sum of its proper divisors (1).

225450629 is an equidigital number, since it uses as much as digits as its factorization.

225450629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 225450629 is about 15015.0134532074. The cubic root of 225450629 is about 608.6259756864.

The spelling of 225450629 in words is "two hundred twenty-five million, four hundred fifty thousand, six hundred twenty-nine".