254441505225 has 24 divisors (see below), whose sum is σ = 420842622880. Its totient is φ = 135648587520.

The previous prime is 254441505223. The next prime is 254441505229. The reversal of 254441505225 is 522505144452.

It is not a de Polignac number, because 254441505225 - 2¹ = 254441505223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254441505223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 477664 + ... + 858513.

Almost surely, 2^254441505225 is an apocalyptic number.

254441505225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

254441505225 is a deficient number, since it is larger than the sum of its proper divisors (166401117655).

254441505225 is a wasteful number, since it uses less digits than its factorization.

254441505225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338729 (or 1338724 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 39.

Adding to 254441505225 its reverse (522505144452), we get a palindrome (776946649677).

The spelling of 254441505225 in words is "two hundred fifty-four billion, four hundred forty-one million, five hundred five thousand, two hundred twenty-five".