55353560640065 has 4 divisors (see below), whose sum is σ = 66424272768084. Its totient is φ = 44282848512048.

The previous prime is 55353560640061. The next prime is 55353560640073. The reversal of 55353560640065 is 56004606535355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37978735710721 + 17374824929344 = 6162689^2 + 4168312^2 .

It is a cyclic number.

It is not a de Polignac number, because 55353560640065 - 2² = 55353560640061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55353560639989 and 55353560640016.

It is not an unprimeable number, because it can be changed into a prime (55353560640061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5535356064002 + ... + 5535356064011.

It is an arithmetic number, because the mean of its divisors is an integer number (16606068192021).

Almost surely, 2^{55353560640065} is an apocalyptic number.

It is an amenable number.

55353560640065 is a deficient number, since it is larger than the sum of its proper divisors (11070712128019).

55353560640065 is a wasteful number, since it uses less digits than its factorization.

55353560640065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070712128018.

The product of its (nonzero) digits is 24300000, while the sum is 53.

The spelling of 55353560640065 in words is "fifty-five trillion, three hundred fifty-three billion, five hundred sixty million, six hundred forty thousand, sixty-five".