55321765567459 has 2 divisors, whose sum is σ = 55321765567460. Its totient is φ = 55321765567458.

The previous prime is 55321765567441. The next prime is 55321765567501. The reversal of 55321765567459 is 95476556712355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55321765567459 - 2⁵ = 55321765567427 is a prime.

It is not a weakly prime, because it can be changed into another prime (55321765567559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27660882783729 + 27660882783730.

It is an arithmetic number, because the mean of its divisors is an integer number (27660882783730).

Almost surely, 2^{55321765567459} is an apocalyptic number.

55321765567459 is a deficient number, since it is larger than the sum of its proper divisors (1).

55321765567459 is an equidigital number, since it uses as much as digits as its factorization.

55321765567459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700000, while the sum is 70.

The spelling of 55321765567459 in words is "fifty-five trillion, three hundred twenty-one billion, seven hundred sixty-five million, five hundred sixty-seven thousand, four hundred fifty-nine".