1055785260855 has 32 divisors (see below), whose sum is σ = 1821951633600. Its totient is φ = 518984801280.

The previous prime is 1055785260853. The next prime is 1055785260857. The reversal of 1055785260855 is 5580625875501.

It is an interprime number because it is at equal distance from previous prime (1055785260853) and next prime (1055785260857).

It is not a de Polignac number, because 1055785260855 - 2¹ = 1055785260853 is a prime.

It is a super-2 number, since 2×1055785260855² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1055785260795 and 1055785260804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055785260851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3966630 + ... + 4224419.

It is an arithmetic number, because the mean of its divisors is an integer number (56935988550).

Almost surely, 2^{1055785260855} is an apocalyptic number.

1055785260855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1055785260855 is a deficient number, since it is larger than the sum of its proper divisors (766166372745).

1055785260855 is a wasteful number, since it uses less digits than its factorization.

1055785260855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191731.

The product of its (nonzero) digits is 16800000, while the sum is 57.

The spelling of 1055785260855 in words is "one trillion, fifty-five billion, seven hundred eighty-five million, two hundred sixty thousand, eight hundred fifty-five".