225035281 has 6 divisors (see below), whose sum is σ = 228254546. Its totient is φ = 221860800.

The previous prime is 225035257. The next prime is 225035287. The reversal of 225035281 is 182530522.

It can be written as a sum of positive squares in only one way, i.e., 209786256 + 15249025 = 14484^2 + 3905^2 .

It is not a de Polignac number, because 225035281 - 2⁹ = 225034769 is a prime.

It is a super-2 number, since 2×225035281² = 101281755389497922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225035287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17280 + ... + 27361.

Almost surely, 2^225035281 is an apocalyptic number.

It is an amenable number.

225035281 is a deficient number, since it is larger than the sum of its proper divisors (3219265).

225035281 is an frugal number, since it uses more digits than its factorization.

225035281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44783 (or 44712 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 225035281 is about 15001.1759872351. The cubic root of 225035281 is about 608.2519884393.

The spelling of 225035281 in words is "two hundred twenty-five million, thirty-five thousand, two hundred eighty-one".