551305425556 has 12 divisors (see below), whose sum is σ = 964871827668. Its totient is φ = 275627760512.

The previous prime is 551305425523. The next prime is 551305425557. The reversal of 551305425556 is 655524503155.

It can be written as a sum of positive squares in 2 ways, for example, as 379813364100 + 171492061456 = 616290^2 + 414116^2 .

It is a super-4 number, since 4×551305425556⁴ (a number of 48 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551305425557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6188311 + ... + 6276766.

It is an arithmetic number, because the mean of its divisors is an integer number (80405985639).

Almost surely, 2^551305425556 is an apocalyptic number.

It is an amenable number.

551305425556 is a deficient number, since it is larger than the sum of its proper divisors (413566402112).

551305425556 is a wasteful number, since it uses less digits than its factorization.

551305425556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12476138 (or 12476136 counting only the distinct ones).

The product of its (nonzero) digits is 2250000, while the sum is 46.

The spelling of 551305425556 in words is "five hundred fifty-one billion, three hundred five million, four hundred twenty-five thousand, five hundred fifty-six".