55025782558249 has 4 divisors (see below), whose sum is σ = 55107061410564. Its totient is φ = 54944503705936.

The previous prime is 55025782558213. The next prime is 55025782558277. The reversal of 55025782558249 is 94285528752055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41231295745600 + 13794486812649 = 6421160^2 + 3714093^2 .

It is a cyclic number.

It is not a de Polignac number, because 55025782558249 - 2²⁹ = 55025245687337 is a prime.

It is a super-2 number, since 2×55025782558249² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55025782558849) by changing a digit.

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, 40639425142 + ... + 40639426495.

It is an arithmetic number, because the mean of its divisors is an integer number (13776765352641).

Almost surely, 2^{55025782558249} is an apocalyptic number.

It is an amenable number.

55025782558249 is a deficient number, since it is larger than the sum of its proper divisors (81278852315).

55025782558249 is an equidigital number, since it uses as much as digits as its factorization.

55025782558249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81278852314.

The product of its (nonzero) digits is 403200000, while the sum is 67.

The spelling of 55025782558249 in words is "fifty-five trillion, twenty-five billion, seven hundred eighty-two million, five hundred fifty-eight thousand, two hundred forty-nine".