55784034811 has 2 divisors, whose sum is σ = 55784034812. Its totient is φ = 55784034810.

The previous prime is 55784034809. The next prime is 55784034913. The reversal of 55784034811 is 11843048755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55784034811 - 2¹ = 55784034809 is a prime.

It is a super-2 number, since 2×55784034811² (a number of 22 digits) contains 22 as substring.

Together with 55784034809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55784034511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27892017405 + 27892017406.

It is an arithmetic number, because the mean of its divisors is an integer number (27892017406).

Almost surely, 2^55784034811 is an apocalyptic number.

55784034811 is a deficient number, since it is larger than the sum of its proper divisors (1).

55784034811 is an equidigital number, since it uses as much as digits as its factorization.

55784034811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 55784034811 in words is "fifty-five billion, seven hundred eighty-four million, thirty-four thousand, eight hundred eleven".