551978651133 has 48 divisors (see below), whose sum is σ = 982415581056. Its totient is φ = 290821207680.

The previous prime is 551978651087. The next prime is 551978651141. The reversal of 551978651133 is 331156879155.

It is a happy number.

551978651133 is a `hidden beast` number, since 5 + 5 + 1 + 97 + 8 + 6 + 511 + 33 = 666.

It is not a de Polignac number, because 551978651133 - 2⁸ = 551978650877 is a prime.

It is a super-3 number, since 3×551978651133³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 551978651133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551978651153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334018 + ... + 1102508.

It is an arithmetic number, because the mean of its divisors is an integer number (20466991272).

Almost surely, 2^551978651133 is an apocalyptic number.

It is an amenable number.

551978651133 is a deficient number, since it is larger than the sum of its proper divisors (430436929923).

551978651133 is a wasteful number, since it uses less digits than its factorization.

551978651133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769394 (or 769391 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 54.

The spelling of 551978651133 in words is "five hundred fifty-one billion, nine hundred seventy-eight million, six hundred fifty-one thousand, one hundred thirty-three".