225321511 has 8 divisors (see below), whose sum is σ = 228466224. Its totient is φ = 222187200.

The previous prime is 225321493. The next prime is 225321623. The reversal of 225321511 is 115123522.

225321511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225321511 - 2⁵ = 225321479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225327511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47625 + ... + 52141.

It is an arithmetic number, because the mean of its divisors is an integer number (28558278).

Almost surely, 2^225321511 is an apocalyptic number.

225321511 is a deficient number, since it is larger than the sum of its proper divisors (3144713).

225321511 is an equidigital number, since it uses as much as digits as its factorization.

225321511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201.

The product of its digits is 600, while the sum is 22.

The square root of 225321511 is about 15010.7132075728. The cubic root of 225321511 is about 608.5097646177.

The spelling of 225321511 in words is "two hundred twenty-five million, three hundred twenty-one thousand, five hundred eleven".