551256009212 has 12 divisors (see below), whose sum is σ = 964719414960. Its totient is φ = 275621890656.

The previous prime is 551256009203. The next prime is 551256009223. The reversal of 551256009212 is 212900652155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322537 + ... + 1688672.

It is an arithmetic number, because the mean of its divisors is an integer number (80393284580).

Almost surely, 2^551256009212 is an apocalyptic number.

It is an amenable number.

551256009212 is a deficient number, since it is larger than the sum of its proper divisors (413463405748).

551256009212 is a wasteful number, since it uses less digits than its factorization.

551256009212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056980 (or 3056978 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 551256009212 in words is "five hundred fifty-one billion, two hundred fifty-six million, nine thousand, two hundred twelve".