55821631067 has 2 divisors, whose sum is σ = 55821631068. Its totient is φ = 55821631066.

The previous prime is 55821631037. The next prime is 55821631111. The reversal of 55821631067 is 76013612855.

It is an a-pointer prime, because the next prime (55821631111) can be obtained adding 55821631067 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55821631067 - 2⁶ = 55821631003 is a prime.

It is not a weakly prime, because it can be changed into another prime (55821631027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27910815533 + 27910815534.

It is an arithmetic number, because the mean of its divisors is an integer number (27910815534).

Almost surely, 2^55821631067 is an apocalyptic number.

55821631067 is a deficient number, since it is larger than the sum of its proper divisors (1).

55821631067 is an equidigital number, since it uses as much as digits as its factorization.

55821631067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 55821631067 in words is "fifty-five billion, eight hundred twenty-one million, six hundred thirty-one thousand, sixty-seven".