551530435260 has 384 divisors, whose sum is σ = 1937949511680. Its totient is φ = 114315411456.

The previous prime is 551530435241. The next prime is 551530435271. The reversal of 551530435260 is 62534035155.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 27200406 + ... + 27220674.

It is an arithmetic number, because the mean of its divisors is an integer number (5046743520).

Almost surely, 2^551530435260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551530435260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (968974755840).

551530435260 is an abundant number, since it is smaller than the sum of its proper divisors (1386419076420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551530435260 is a wasteful number, since it uses less digits than its factorization.

551530435260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20445 (or 20443 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 551530435260 in words is "five hundred fifty-one billion, five hundred thirty million, four hundred thirty-five thousand, two hundred sixty".