225485511 has 16 divisors (see below), whose sum is σ = 311522784. Its totient is φ = 144958464.

The previous prime is 225485509. The next prime is 225485531. The reversal of 225485511 is 115584522.

225485511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225485511 - 2¹ = 225485509 is a prime.

It is a super-2 number, since 2×225485511² = 101687431341862242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225485531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3555 + ... + 21531.

It is an arithmetic number, because the mean of its divisors is an integer number (19470174).

Almost surely, 2^225485511 is an apocalyptic number.

225485511 is a deficient number, since it is larger than the sum of its proper divisors (86037273).

225485511 is a wasteful number, since it uses less digits than its factorization.

225485511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18130.

The product of its digits is 16000, while the sum is 33.

The square root of 225485511 is about 15016.1749790018. The cubic root of 225485511 is about 608.6573631888.

The spelling of 225485511 in words is "two hundred twenty-five million, four hundred eighty-five thousand, five hundred eleven".