55366723591 has 2 divisors, whose sum is σ = 55366723592. Its totient is φ = 55366723590.

The previous prime is 55366723583. The next prime is 55366723673. The reversal of 55366723591 is 19532766355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55366723591 - 2³ = 55366723583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55366723541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27683361795 + 27683361796.

It is an arithmetic number, because the mean of its divisors is an integer number (27683361796).

Almost surely, 2^55366723591 is an apocalyptic number.

55366723591 is a deficient number, since it is larger than the sum of its proper divisors (1).

55366723591 is an equidigital number, since it uses as much as digits as its factorization.

55366723591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5103000, while the sum is 52.

The spelling of 55366723591 in words is "fifty-five billion, three hundred sixty-six million, seven hundred twenty-three thousand, five hundred ninety-one".