225434515 has 4 divisors (see below), whose sum is σ = 270521424. Its totient is φ = 180347608.

The previous prime is 225434507. The next prime is 225434519. The reversal of 225434515 is 515434522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225434515 - 2³ = 225434507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225434519) 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 in 3 ways as a sum of consecutive naturals, for example, 22543447 + ... + 22543456.

It is an arithmetic number, because the mean of its divisors is an integer number (67630356).

Almost surely, 2^225434515 is an apocalyptic number.

225434515 is a deficient number, since it is larger than the sum of its proper divisors (45086909).

225434515 is an equidigital number, since it uses as much as digits as its factorization.

225434515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45086908.

The product of its digits is 24000, while the sum is 31.

The square root of 225434515 is about 15014.4768473630. The cubic root of 225434515 is about 608.6114749024.

The spelling of 225434515 in words is "two hundred twenty-five million, four hundred thirty-four thousand, five hundred fifteen".