225534513 has 4 divisors (see below), whose sum is σ = 300712688. Its totient is φ = 150356340.

The previous prime is 225534511. The next prime is 225534523. The reversal of 225534513 is 315435522.

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 225534513 - 2¹ = 225534511 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225534511) 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, 37589083 + ... + 37589088.

It is an arithmetic number, because the mean of its divisors is an integer number (75178172).

Almost surely, 2^225534513 is an apocalyptic number.

It is an amenable number.

225534513 is a deficient number, since it is larger than the sum of its proper divisors (75178175).

225534513 is an equidigital number, since it uses as much as digits as its factorization.

225534513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75178174.

The product of its digits is 18000, while the sum is 30.

The square root of 225534513 is about 15017.8065309152. The cubic root of 225534513 is about 608.7014506747.

The spelling of 225534513 in words is "two hundred twenty-five million, five hundred thirty-four thousand, five hundred thirteen".