55771666254 has 12 divisors (see below), whose sum is σ = 120838610256. Its totient is φ = 18590555412.

The previous prime is 55771666253. The next prime is 55771666273. The reversal of 55771666254 is 45266617755.

It is a happy number.

It is a super-2 number, since 2×55771666254² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55771666254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55771666253) 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 5 ways as a sum of consecutive naturals, for example, 1549212934 + ... + 1549212969.

It is an arithmetic number, because the mean of its divisors is an integer number (10069884188).

Almost surely, 2^55771666254 is an apocalyptic number.

55771666254 is an abundant number, since it is smaller than the sum of its proper divisors (65066944002).

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

55771666254 is a wasteful number, since it uses less digits than its factorization.

55771666254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098425911 (or 3098425908 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 54.

The spelling of 55771666254 in words is "fifty-five billion, seven hundred seventy-one million, six hundred sixty-six thousand, two hundred fifty-four".