225458513 has 4 divisors (see below), whose sum is σ = 257666880. Its totient is φ = 193250148.

The previous prime is 225458509. The next prime is 225458521. The reversal of 225458513 is 315854522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 225458513 - 2² = 225458509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225458593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16104173 + ... + 16104186.

It is an arithmetic number, because the mean of its divisors is an integer number (64416720).

Almost surely, 2^225458513 is an apocalyptic number.

It is an amenable number.

225458513 is a deficient number, since it is larger than the sum of its proper divisors (32208367).

225458513 is an equidigital number, since it uses as much as digits as its factorization.

225458513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32208366.

The product of its digits is 48000, while the sum is 35.

The square root of 225458513 is about 15015.2759881395. The cubic root of 225458513 is about 608.6330701462.

The spelling of 225458513 in words is "two hundred twenty-five million, four hundred fifty-eight thousand, five hundred thirteen".