225252323477 has 4 divisors (see below), whose sum is σ = 225619783020. Its totient is φ = 224884863936.

The previous prime is 225252323447. The next prime is 225252323539. The reversal of 225252323477 is 774323252522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63164758276 + 162087565201 = 251326^2 + 402601^2 .

It is a cyclic number.

It is not a de Polignac number, because 225252323477 - 2⁸ = 225252323221 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 (225252323437) 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 3 ways as a sum of consecutive naturals, for example, 183728852 + ... + 183730077.

It is an arithmetic number, because the mean of its divisors is an integer number (56404945755).

Almost surely, 2^225252323477 is an apocalyptic number.

It is an amenable number.

225252323477 is a deficient number, since it is larger than the sum of its proper divisors (367459543).

225252323477 is an equidigital number, since it uses as much as digits as its factorization.

225252323477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367459542.

The product of its digits is 1411200, while the sum is 44.

Adding to 225252323477 its reverse (774323252522), we get a palindrome (999575575999).

The spelling of 225252323477 in words is "two hundred twenty-five billion, two hundred fifty-two million, three hundred twenty-three thousand, four hundred seventy-seven".