225203451 has 16 divisors (see below), whose sum is σ = 327819648. Its totient is φ = 136382400.

The previous prime is 225203441. The next prime is 225203453. The reversal of 225203451 is 154302522.

It is not a de Polignac number, because 225203451 - 2⁷ = 225203323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225203453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81840 + ... + 84546.

It is an arithmetic number, because the mean of its divisors is an integer number (20488728).

Almost surely, 2^225203451 is an apocalyptic number.

225203451 is a deficient number, since it is larger than the sum of its proper divisors (102616197).

225203451 is a wasteful number, since it uses less digits than its factorization.

225203451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 225203451 is about 15006.7801676442. The cubic root of 225203451 is about 608.4034673045.

Adding to 225203451 its reverse (154302522), we get a palindrome (379505973).

The spelling of 225203451 in words is "two hundred twenty-five million, two hundred three thousand, four hundred fifty-one".