55265790017 has 2 divisors, whose sum is σ = 55265790018. Its totient is φ = 55265790016.

The previous prime is 55265789993. The next prime is 55265790043. The reversal of 55265790017 is 71009756255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51328980481 + 3936809536 = 226559^2 + 62744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55265790017 is a prime.

It is a super-3 number, since 3×55265790017³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (55265790317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27632895008 + 27632895009.

It is an arithmetic number, because the mean of its divisors is an integer number (27632895009).

Almost surely, 2^55265790017 is an apocalyptic number.

It is an amenable number.

55265790017 is a deficient number, since it is larger than the sum of its proper divisors (1).

55265790017 is an equidigital number, since it uses as much as digits as its factorization.

55265790017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 661500, while the sum is 47.

The spelling of 55265790017 in words is "fifty-five billion, two hundred sixty-five million, seven hundred ninety thousand, seventeen".