225450231025 has 6 divisors (see below), whose sum is σ = 279558286502. Its totient is φ = 180360184800.

The previous prime is 225450230953. The next prime is 225450231053. The reversal of 225450231025 is 520132054522.

It can be written as a sum of positive squares in 3 ways, for example, as 63527690209 + 161922540816 = 252047^2 + 402396^2 .

It is not a de Polignac number, because 225450231025 - 2⁹ = 225450230513 is a prime.

It is a super-3 number, since 3×225450231025³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4509004596 + ... + 4509004645.

Almost surely, 2^225450231025 is an apocalyptic number.

225450231025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225450231025 is a deficient number, since it is larger than the sum of its proper divisors (54108055477).

225450231025 is an equidigital number, since it uses as much as digits as its factorization.

225450231025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9018009251 (or 9018009246 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 225450231025 its reverse (520132054522), we get a palindrome (745582285547).

The spelling of 225450231025 in words is "two hundred twenty-five billion, four hundred fifty million, two hundred thirty-one thousand, twenty-five".