55055522279 has 2 divisors, whose sum is σ = 55055522280. Its totient is φ = 55055522278.

The previous prime is 55055522239. The next prime is 55055522299. The reversal of 55055522279 is 97222555055.

55055522279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55055522279 is a prime.

It is a super-2 number, since 2×55055522279² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55055522239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527761139 + 27527761140.

It is an arithmetic number, because the mean of its divisors is an integer number (27527761140).

Almost surely, 2^55055522279 is an apocalyptic number.

55055522279 is a deficient number, since it is larger than the sum of its proper divisors (1).

55055522279 is an equidigital number, since it uses as much as digits as its factorization.

55055522279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575000, while the sum is 47.

The spelling of 55055522279 in words is "fifty-five billion, fifty-five million, five hundred twenty-two thousand, two hundred seventy-nine".