55528346121617 has 2 divisors, whose sum is σ = 55528346121618. Its totient is φ = 55528346121616.

The previous prime is 55528346121587. The next prime is 55528346121667. The reversal of 55528346121617 is 71612164382555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38872120032001 + 16656226089616 = 6234751^2 + 4081204^2 .

It is a cyclic number.

It is not a de Polignac number, because 55528346121617 - 2¹² = 55528346117521 is a prime.

It is not a weakly prime, because it can be changed into another prime (55528346121667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27764173060808 + 27764173060809.

It is an arithmetic number, because the mean of its divisors is an integer number (27764173060809).

Almost surely, 2^{55528346121617} is an apocalyptic number.

It is an amenable number.

55528346121617 is a deficient number, since it is larger than the sum of its proper divisors (1).

55528346121617 is an equidigital number, since it uses as much as digits as its factorization.

55528346121617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096000, while the sum is 56.

The spelling of 55528346121617 in words is "fifty-five trillion, five hundred twenty-eight billion, three hundred forty-six million, one hundred twenty-one thousand, six hundred seventeen".