551353420425 has 48 divisors (see below), whose sum is σ = 977653229760. Its totient is φ = 273322333440.

The previous prime is 551353420421. The next prime is 551353420439. The reversal of 551353420425 is 524024353155.

It is not a de Polignac number, because 551353420425 - 2² = 551353420421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551353420421) 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 47 ways as a sum of consecutive naturals, for example, 3574614 + ... + 3725663.

It is an arithmetic number, because the mean of its divisors is an integer number (20367775620).

Almost surely, 2^551353420425 is an apocalyptic number.

It is an amenable number.

551353420425 is a deficient number, since it is larger than the sum of its proper divisors (426299809335).

551353420425 is a wasteful number, since it uses less digits than its factorization.

551353420425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7300362 (or 7300357 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 551353420425 in words is "five hundred fifty-one billion, three hundred fifty-three million, four hundred twenty thousand, four hundred twenty-five".