55285835726565 has 12 divisors (see below), whose sum is σ = 95828781926124. Its totient is φ = 29485779054144.

The previous prime is 55285835726551. The next prime is 55285835726581. The reversal of 55285835726565 is 56562753858255.

55285835726565 is a `hidden beast` number, since 5 + 5 + 2 + 8 + 5 + 8 + 3 + 57 + 2 + 6 + 565 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18939912704001 + 36345923022564 = 4352001^2 + 6028758^2 .

It is not a de Polignac number, because 55285835726565 - 2⁴ = 55285835726549 is a prime.

It is a super-3 number, since 3×55285835726565³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55285835726493 and 55285835726502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 614287063584 + ... + 614287063673.

It is an arithmetic number, because the mean of its divisors is an integer number (7985731827177).

Almost surely, 2^{55285835726565} is an apocalyptic number.

It is an amenable number.

55285835726565 is a deficient number, since it is larger than the sum of its proper divisors (40542946199559).

55285835726565 is a wasteful number, since it uses less digits than its factorization.

55285835726565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228574127268 (or 1228574127265 counting only the distinct ones).

The product of its digits is 3024000000, while the sum is 72.

The spelling of 55285835726565 in words is "fifty-five trillion, two hundred eighty-five billion, eight hundred thirty-five million, seven hundred twenty-six thousand, five hundred sixty-five".