551225441 has 12 divisors (see below), whose sum is σ = 598091580. Its totient is φ = 507798720.

The previous prime is 551225407. The next prime is 551225453. The reversal of 551225441 is 144522155.

It can be written as a sum of positive squares in 6 ways, for example, as 17430625 + 533794816 = 4175^2 + 23104^2 .

It is a de Polignac number, because none of the positive numbers 2^k-551225441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551225401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88415 + ... + 94443.

It is an arithmetic number, because the mean of its divisors is an integer number (49840965).

Almost surely, 2^551225441 is an apocalyptic number.

It is an amenable number.

551225441 is a deficient number, since it is larger than the sum of its proper divisors (46866139).

551225441 is a wasteful number, since it uses less digits than its factorization.

551225441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596 (or 6583 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 551225441 is about 23478.1907522705. The cubic root of 551225441 is about 819.9293221851.

Adding to 551225441 its reverse (144522155), we get a palindrome (695747596).

It can be divided in two parts, 551225 and 441, that multiplied together give a triangular number (243090225 = T₂₂₀₄₉).

The spelling of 551225441 in words is "five hundred fifty-one million, two hundred twenty-five thousand, four hundred forty-one".