225525133 has 4 divisors (see below), whose sum is σ = 231025788. Its totient is φ = 220024480.

The previous prime is 225525119. The next prime is 225525151. The reversal of 225525133 is 331525522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331525522 = 2 ⋅165762761.

It can be written as a sum of positive squares in 2 ways, for example, as 81956809 + 143568324 = 9053^2 + 11982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225525133 is a prime.

It is a super-2 number, since 2×225525133² = 101723171229335378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225525103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2750266 + ... + 2750347.

It is an arithmetic number, because the mean of its divisors is an integer number (57756447).

Almost surely, 2^225525133 is an apocalyptic number.

It is an amenable number.

225525133 is a deficient number, since it is larger than the sum of its proper divisors (5500655).

225525133 is an equidigital number, since it uses as much as digits as its factorization.

225525133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500654.

The product of its digits is 9000, while the sum is 28.

The square root of 225525133 is about 15017.4942317285. The cubic root of 225525133 is about 608.6930119089.

The spelling of 225525133 in words is "two hundred twenty-five million, five hundred twenty-five thousand, one hundred thirty-three".