55874086129 has 3 divisors (see below), whose sum is σ = 55874322507. Its totient is φ = 55873849752.

The previous prime is 55874086123. The next prime is 55874086189. The reversal of 55874086129 is 92168047855.

It is a happy number.

The square root of 55874086129 is 236377.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 46991400625 + 8882685504 = 216775^2 + 94248^2 .

It is not a de Polignac number, because 55874086129 - 2⁵ = 55874086097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55874086129.

It is not an unprimeable number, because it can be changed into a prime (55874086123) 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 2 ways as a sum of consecutive naturals, for example, 118189 + ... + 354565.

It is an arithmetic number, because the mean of its divisors is an integer number (18624774169).

Almost surely, 2^55874086129 is an apocalyptic number.

55874086129 is the 236377-th square number.

55874086129 is the 118189-th centered octagonal number.

It is an amenable number.

55874086129 is a deficient number, since it is larger than the sum of its proper divisors (236378).

55874086129 is an frugal number, since it uses more digits than its factorization.

55874086129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472754 (or 236377 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 55874086129 in words is "fifty-five billion, eight hundred seventy-four million, eighty-six thousand, one hundred twenty-nine".