225430525 has 6 divisors (see below), whose sum is σ = 279533882. Its totient is φ = 180344400.

The previous prime is 225430519. The next prime is 225430531. The reversal of 225430525 is 525034522.

It is an interprime number because it is at equal distance from previous prime (225430519) and next prime (225430531).

It can be written as a sum of positive squares in 3 ways, for example, as 43639236 + 181791289 = 6606^2 + 13483^2 .

It is not a de Polignac number, because 225430525 - 2⁷ = 225430397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225430493 and 225430502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4508586 + ... + 4508635.

Almost surely, 2^225430525 is an apocalyptic number.

225430525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225430525 is a deficient number, since it is larger than the sum of its proper divisors (54103357).

225430525 is an equidigital number, since it uses as much as digits as its factorization.

225430525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9017231 (or 9017226 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 225430525 is about 15014.3439750127. The cubic root of 225430525 is about 608.6078842453.

The spelling of 225430525 in words is "two hundred twenty-five million, four hundred thirty thousand, five hundred twenty-five".