55316884769 has 2 divisors, whose sum is σ = 55316884770. Its totient is φ = 55316884768.

The previous prime is 55316884723. The next prime is 55316884801. The reversal of 55316884769 is 96748861355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49648752400 + 5668132369 = 222820^2 + 75287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55316884769 is a prime.

It is a super-2 number, since 2×55316884769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55316884369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27658442384 + 27658442385.

It is an arithmetic number, because the mean of its divisors is an integer number (27658442385).

Almost surely, 2^55316884769 is an apocalyptic number.

It is an amenable number.

55316884769 is a deficient number, since it is larger than the sum of its proper divisors (1).

55316884769 is an equidigital number, since it uses as much as digits as its factorization.

55316884769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43545600, while the sum is 62.

The spelling of 55316884769 in words is "fifty-five billion, three hundred sixteen million, eight hundred eighty-four thousand, seven hundred sixty-nine".