55055002780051 has 2 divisors, whose sum is σ = 55055002780052. Its totient is φ = 55055002780050.

The previous prime is 55055002780021. The next prime is 55055002780061. The reversal of 55055002780051 is 15008720055055.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55055002780051 is a prime.

It is a super-2 number, since 2×55055002780051² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55055002780021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527501390025 + 27527501390026.

It is an arithmetic number, because the mean of its divisors is an integer number (27527501390026).

Almost surely, 2^{55055002780051} is an apocalyptic number.

55055002780051 is a deficient number, since it is larger than the sum of its proper divisors (1).

55055002780051 is an equidigital number, since it uses as much as digits as its factorization.

55055002780051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 350000, while the sum is 43.

The spelling of 55055002780051 in words is "fifty-five trillion, fifty-five billion, two million, seven hundred eighty thousand, fifty-one".